Home / 913,802.76-1,369,684.60-381,146.76

Finding the Fourth Proportional to 913,802.76, 1,369,684.60 and 381,146.76

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Solution

The fourth proportional to 913,802.76, 1,369,684.60 and 381,146.76 is: 571,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,802.76 : 1,369,684.60 = 381,146.76 : x
  2. Step 2: Convert to fraction form
    913,802.76/1,369,684.60 = 381,146.76/x
  3. Step 3: Cross multiply
    913,802.76x = 1,369,684.60 × 381,146.76
  4. Step 4: Simplify right side
    913,802.76x = 522,050,847,511.90
  5. Step 5: Solve for x
    x = 522,050,847,511.90/913,802.76
  6. Step 6: Final answer
    x = 571,294.89

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1.5x scale

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.