Home / 1,049,638.40-1,574,457.60-339,718.40

Finding the Fourth Proportional to 1,049,638.40, 1,574,457.60 and 339,718.40

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Solution

The fourth proportional to 1,049,638.40, 1,574,457.60 and 339,718.40 is: 509,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,638.40 : 1,574,457.60 = 339,718.40 : x
  2. Step 2: Convert to fraction form
    1,049,638.40/1,574,457.60 = 339,718.40/x
  3. Step 3: Cross multiply
    1,049,638.40x = 1,574,457.60 × 339,718.40
  4. Step 4: Simplify right side
    1,049,638.40x = 534,872,216,739.84
  5. Step 5: Solve for x
    x = 534,872,216,739.84/1,049,638.40
  6. Step 6: Final answer
    x = 509,577.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.