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Finding the Fourth Proportional to 488,315.10, 732,472.65 and 299,358.30

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Solution

The fourth proportional to 488,315.10, 732,472.65 and 299,358.30 is: 449,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,315.10 : 732,472.65 = 299,358.30 : x
  2. Step 2: Convert to fraction form
    488,315.10/732,472.65 = 299,358.30/x
  3. Step 3: Cross multiply
    488,315.10x = 732,472.65 × 299,358.30
  4. Step 4: Simplify right side
    488,315.10x = 219,271,767,300.50
  5. Step 5: Solve for x
    x = 219,271,767,300.50/488,315.10
  6. Step 6: Final answer
    x = 449,037.45

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Double scale
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Similar ratio
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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.