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Finding the Fourth Proportional to 885,854.87, 1,329,368.55 and 486,773.54

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Solution

The fourth proportional to 885,854.87, 1,329,368.55 and 486,773.54 is: 730,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,854.87 : 1,329,368.55 = 486,773.54 : x
  2. Step 2: Convert to fraction form
    885,854.87/1,329,368.55 = 486,773.54/x
  3. Step 3: Cross multiply
    885,854.87x = 1,329,368.55 × 486,773.54
  4. Step 4: Simplify right side
    885,854.87x = 647,101,428,401.32
  5. Step 5: Solve for x
    x = 647,101,428,401.32/885,854.87
  6. Step 6: Final answer
    x = 730,482.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.