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Finding the Fourth Proportional to 660,363.13, 911,304.75 and 358,557.13

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Solution

The fourth proportional to 660,363.13, 911,304.75 and 358,557.13 is: 494,810.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,363.13 : 911,304.75 = 358,557.13 : x
  2. Step 2: Convert to fraction form
    660,363.13/911,304.75 = 358,557.13/x
  3. Step 3: Cross multiply
    660,363.13x = 911,304.75 × 358,557.13
  4. Step 4: Simplify right side
    660,363.13x = 326,754,815,715.37
  5. Step 5: Solve for x
    x = 326,754,815,715.37/660,363.13
  6. Step 6: Final answer
    x = 494,810.81

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1.5x scale

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.