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Finding the Fourth Proportional to 676,699.80, 933,884.90 and 370,776.78

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Solution

The fourth proportional to 676,699.80, 933,884.90 and 370,776.78 is: 511,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,699.80 : 933,884.90 = 370,776.78 : x
  2. Step 2: Convert to fraction form
    676,699.80/933,884.90 = 370,776.78/x
  3. Step 3: Cross multiply
    676,699.80x = 933,884.90 × 370,776.78
  4. Step 4: Simplify right side
    676,699.80x = 346,262,834,258.74
  5. Step 5: Solve for x
    x = 346,262,834,258.74/676,699.80
  6. Step 6: Final answer
    x = 511,693.42

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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.