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Finding the Fourth Proportional to 647,614.55, 970,547.02 and 433,774.55

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Solution

The fourth proportional to 647,614.55, 970,547.02 and 433,774.55 is: 650,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,614.55 : 970,547.02 = 433,774.55 : x
  2. Step 2: Convert to fraction form
    647,614.55/970,547.02 = 433,774.55/x
  3. Step 3: Cross multiply
    647,614.55x = 970,547.02 × 433,774.55
  4. Step 4: Simplify right side
    647,614.55x = 420,998,596,854.34
  5. Step 5: Solve for x
    x = 420,998,596,854.34/647,614.55
  6. Step 6: Final answer
    x = 650,075.88

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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.