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Finding the Fourth Proportional to 671,364.59, 926,503.11 and 413,390.35

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Solution

The fourth proportional to 671,364.59, 926,503.11 and 413,390.35 is: 570,490.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,364.59 : 926,503.11 = 413,390.35 : x
  2. Step 2: Convert to fraction form
    671,364.59/926,503.11 = 413,390.35/x
  3. Step 3: Cross multiply
    671,364.59x = 926,503.11 × 413,390.35
  4. Step 4: Simplify right side
    671,364.59x = 383,007,446,077.12
  5. Step 5: Solve for x
    x = 383,007,446,077.12/671,364.59
  6. Step 6: Final answer
    x = 570,490.99

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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.