Home / 840,446.71-1,159,871.27-477,904.31

Finding the Fourth Proportional to 840,446.71, 1,159,871.27 and 477,904.31

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Solution

The fourth proportional to 840,446.71, 1,159,871.27 and 477,904.31 is: 659,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,446.71 : 1,159,871.27 = 477,904.31 : x
  2. Step 2: Convert to fraction form
    840,446.71/1,159,871.27 = 477,904.31/x
  3. Step 3: Cross multiply
    840,446.71x = 1,159,871.27 × 477,904.31
  4. Step 4: Simplify right side
    840,446.71x = 554,307,478,978.17
  5. Step 5: Solve for x
    x = 554,307,478,978.17/840,446.71
  6. Step 6: Final answer
    x = 659,539.11

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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.