Home / 840,281.13-1,159,601.78-458,307.91

Finding the Fourth Proportional to 840,281.13, 1,159,601.78 and 458,307.91

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Solution

The fourth proportional to 840,281.13, 1,159,601.78 and 458,307.91 is: 632,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,281.13 : 1,159,601.78 = 458,307.91 : x
  2. Step 2: Convert to fraction form
    840,281.13/1,159,601.78 = 458,307.91/x
  3. Step 3: Cross multiply
    840,281.13x = 1,159,601.78 × 458,307.91
  4. Step 4: Simplify right side
    840,281.13x = 531,454,668,224.08
  5. Step 5: Solve for x
    x = 531,454,668,224.08/840,281.13
  6. Step 6: Final answer
    x = 632,472.45

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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.