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Finding the Fourth Proportional to 346,715.70, 520,073.55 and 283,730.10

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Solution

The fourth proportional to 346,715.70, 520,073.55 and 283,730.10 is: 425,595.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,715.70 : 520,073.55 = 283,730.10 : x
  2. Step 2: Convert to fraction form
    346,715.70/520,073.55 = 283,730.10/x
  3. Step 3: Cross multiply
    346,715.70x = 520,073.55 × 283,730.10
  4. Step 4: Simplify right side
    346,715.70x = 147,560,520,348.86
  5. Step 5: Solve for x
    x = 147,560,520,348.86/346,715.70
  6. Step 6: Final answer
    x = 425,595.15

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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.