Home / 840,306.95-1,159,721.63-477,785.13

Finding the Fourth Proportional to 840,306.95, 1,159,721.63 and 477,785.13

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Solution

The fourth proportional to 840,306.95, 1,159,721.63 and 477,785.13 is: 659,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,306.95 : 1,159,721.63 = 477,785.13 : x
  2. Step 2: Convert to fraction form
    840,306.95/1,159,721.63 = 477,785.13/x
  3. Step 3: Cross multiply
    840,306.95x = 1,159,721.63 × 477,785.13
  4. Step 4: Simplify right side
    840,306.95x = 554,097,749,753.36
  5. Step 5: Solve for x
    x = 554,097,749,753.36/840,306.95
  6. Step 6: Final answer
    x = 659,399.22

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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.