Home / 1,008,501.60-1,513,019.70-439,638.60

Finding the Fourth Proportional to 1,008,501.60, 1,513,019.70 and 439,638.60

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Solution

The fourth proportional to 1,008,501.60, 1,513,019.70 and 439,638.60 is: 659,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,501.60 : 1,513,019.70 = 439,638.60 : x
  2. Step 2: Convert to fraction form
    1,008,501.60/1,513,019.70 = 439,638.60/x
  3. Step 3: Cross multiply
    1,008,501.60x = 1,513,019.70 × 439,638.60
  4. Step 4: Simplify right side
    1,008,501.60x = 665,181,862,680.42
  5. Step 5: Solve for x
    x = 665,181,862,680.42/1,008,501.60
  6. Step 6: Final answer
    x = 659,574.42

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Double scale
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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.