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Finding the Fourth Proportional to 518,597, 777,895.50 and 124,613

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Solution

The fourth proportional to 518,597, 777,895.50 and 124,613 is: 186,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,597 : 777,895.50 = 124,613 : x
  2. Step 2: Convert to fraction form
    518,597/777,895.50 = 124,613/x
  3. Step 3: Cross multiply
    518,597x = 777,895.50 × 124,613
  4. Step 4: Simplify right side
    518,597x = 96,935,891,941.50
  5. Step 5: Solve for x
    x = 96,935,891,941.50/518,597
  6. Step 6: Final answer
    x = 186,919.50

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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.