Home / 916,023.20-1,264,132.31-508,111.79

Finding the Fourth Proportional to 916,023.20, 1,264,132.31 and 508,111.79

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Solution

The fourth proportional to 916,023.20, 1,264,132.31 and 508,111.79 is: 701,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,023.20 : 1,264,132.31 = 508,111.79 : x
  2. Step 2: Convert to fraction form
    916,023.20/1,264,132.31 = 508,111.79/x
  3. Step 3: Cross multiply
    916,023.20x = 1,264,132.31 × 508,111.79
  4. Step 4: Simplify right side
    916,023.20x = 642,320,521,969.71
  5. Step 5: Solve for x
    x = 642,320,521,969.71/916,023.20
  6. Step 6: Final answer
    x = 701,205.52

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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.