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Finding the Fourth Proportional to 547,045.39, 754,327.51 and 355,703.95

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Solution

The fourth proportional to 547,045.39, 754,327.51 and 355,703.95 is: 490,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,045.39 : 754,327.51 = 355,703.95 : x
  2. Step 2: Convert to fraction form
    547,045.39/754,327.51 = 355,703.95/x
  3. Step 3: Cross multiply
    547,045.39x = 754,327.51 × 355,703.95
  4. Step 4: Simplify right side
    547,045.39x = 268,317,274,900.67
  5. Step 5: Solve for x
    x = 268,317,274,900.67/547,045.39
  6. Step 6: Final answer
    x = 490,484.48

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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.