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Finding the Fourth Proportional to 563,557, 777,708.84 and 308,909.92

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Solution

The fourth proportional to 563,557, 777,708.84 and 308,909.92 is: 426,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,557 : 777,708.84 = 308,909.92 : x
  2. Step 2: Convert to fraction form
    563,557/777,708.84 = 308,909.92/x
  3. Step 3: Cross multiply
    563,557x = 777,708.84 × 308,909.92
  4. Step 4: Simplify right side
    563,557x = 240,241,975,547.69
  5. Step 5: Solve for x
    x = 240,241,975,547.69/563,557
  6. Step 6: Final answer
    x = 426,295.79

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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.