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Finding the Fourth Proportional to 637,312.80, 879,502.92 and 346,932.76

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Solution

The fourth proportional to 637,312.80, 879,502.92 and 346,932.76 is: 478,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,312.80 : 879,502.92 = 346,932.76 : x
  2. Step 2: Convert to fraction form
    637,312.80/879,502.92 = 346,932.76/x
  3. Step 3: Cross multiply
    637,312.80x = 879,502.92 × 346,932.76
  4. Step 4: Simplify right side
    637,312.80x = 305,128,375,463.66
  5. Step 5: Solve for x
    x = 305,128,375,463.66/637,312.80
  6. Step 6: Final answer
    x = 478,773.34

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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.