Home / 945,541.40-1,418,312.10-280,693.40

Finding the Fourth Proportional to 945,541.40, 1,418,312.10 and 280,693.40

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Solution

The fourth proportional to 945,541.40, 1,418,312.10 and 280,693.40 is: 421,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,541.40 : 1,418,312.10 = 280,693.40 : x
  2. Step 2: Convert to fraction form
    945,541.40/1,418,312.10 = 280,693.40/x
  3. Step 3: Cross multiply
    945,541.40x = 1,418,312.10 × 280,693.40
  4. Step 4: Simplify right side
    945,541.40x = 398,110,845,610.14
  5. Step 5: Solve for x
    x = 398,110,845,610.14/945,541.40
  6. Step 6: Final answer
    x = 421,040.10

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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.