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Finding the Fourth Proportional to 673,617.52, 928,013.12 and 469,298.87

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Solution

The fourth proportional to 673,617.52, 928,013.12 and 469,298.87 is: 646,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,617.52 : 928,013.12 = 469,298.87 : x
  2. Step 2: Convert to fraction form
    673,617.52/928,013.12 = 469,298.87/x
  3. Step 3: Cross multiply
    673,617.52x = 928,013.12 × 469,298.87
  4. Step 4: Simplify right side
    673,617.52x = 435,515,506,214.68
  5. Step 5: Solve for x
    x = 435,515,506,214.68/673,617.52
  6. Step 6: Final answer
    x = 646,532.33

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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.