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Finding the Fourth Proportional to 645,358.24, 966,487.02 and 360,348.40

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Solution

The fourth proportional to 645,358.24, 966,487.02 and 360,348.40 is: 539,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,358.24 : 966,487.02 = 360,348.40 : x
  2. Step 2: Convert to fraction form
    645,358.24/966,487.02 = 360,348.40/x
  3. Step 3: Cross multiply
    645,358.24x = 966,487.02 × 360,348.40
  4. Step 4: Simplify right side
    645,358.24x = 348,272,051,277.77
  5. Step 5: Solve for x
    x = 348,272,051,277.77/645,358.24
  6. Step 6: Final answer
    x = 539,656.94

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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.