Home / 730,489.02-1,008,055.48-408,201.78

Finding the Fourth Proportional to 730,489.02, 1,008,055.48 and 408,201.78

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Solution

The fourth proportional to 730,489.02, 1,008,055.48 and 408,201.78 is: 563,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,489.02 : 1,008,055.48 = 408,201.78 : x
  2. Step 2: Convert to fraction form
    730,489.02/1,008,055.48 = 408,201.78/x
  3. Step 3: Cross multiply
    730,489.02x = 1,008,055.48 × 408,201.78
  4. Step 4: Simplify right side
    730,489.02x = 411,490,041,274.75
  5. Step 5: Solve for x
    x = 411,490,041,274.75/730,489.02
  6. Step 6: Final answer
    x = 563,307.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.