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Finding the Fourth Proportional to 637,770.66, 880,123.40 and 351,290.74

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Solution

The fourth proportional to 637,770.66, 880,123.40 and 351,290.74 is: 484,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,770.66 : 880,123.40 = 351,290.74 : x
  2. Step 2: Convert to fraction form
    637,770.66/880,123.40 = 351,290.74/x
  3. Step 3: Cross multiply
    637,770.66x = 880,123.40 × 351,290.74
  4. Step 4: Simplify right side
    637,770.66x = 309,179,200,477.32
  5. Step 5: Solve for x
    x = 309,179,200,477.32/637,770.66
  6. Step 6: Final answer
    x = 484,781.16

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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.