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Finding the Fourth Proportional to 616,172.40, 922,703.40 and 491,756.40

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Solution

The fourth proportional to 616,172.40, 922,703.40 and 491,756.40 is: 736,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,172.40 : 922,703.40 = 491,756.40 : x
  2. Step 2: Convert to fraction form
    616,172.40/922,703.40 = 491,756.40/x
  3. Step 3: Cross multiply
    616,172.40x = 922,703.40 × 491,756.40
  4. Step 4: Simplify right side
    616,172.40x = 453,745,302,251.76
  5. Step 5: Solve for x
    x = 453,745,302,251.76/616,172.40
  6. Step 6: Final answer
    x = 736,393.42

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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.