Home / 646,851.32-970,380.66-272,929.40

Finding the Fourth Proportional to 646,851.32, 970,380.66 and 272,929.40

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Solution

The fourth proportional to 646,851.32, 970,380.66 and 272,929.40 is: 409,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,851.32 : 970,380.66 = 272,929.40 : x
  2. Step 2: Convert to fraction form
    646,851.32/970,380.66 = 272,929.40/x
  3. Step 3: Cross multiply
    646,851.32x = 970,380.66 × 272,929.40
  4. Step 4: Simplify right side
    646,851.32x = 264,845,411,305.40
  5. Step 5: Solve for x
    x = 264,845,411,305.40/646,851.32
  6. Step 6: Final answer
    x = 409,437.85

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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.