Home / 912,320.31-1,369,721.52-513,241.95

Finding the Fourth Proportional to 912,320.31, 1,369,721.52 and 513,241.95

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Solution

The fourth proportional to 912,320.31, 1,369,721.52 and 513,241.95 is: 770,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,320.31 : 1,369,721.52 = 513,241.95 : x
  2. Step 2: Convert to fraction form
    912,320.31/1,369,721.52 = 513,241.95/x
  3. Step 3: Cross multiply
    912,320.31x = 1,369,721.52 × 513,241.95
  4. Step 4: Simplify right side
    912,320.31x = 702,998,543,881.76
  5. Step 5: Solve for x
    x = 702,998,543,881.76/912,320.31
  6. Step 6: Final answer
    x = 770,561.10

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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.