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Finding the Fourth Proportional to 688,448, 950,055.18 and 382,574.18

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Solution

The fourth proportional to 688,448, 950,055.18 and 382,574.18 is: 527,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,448 : 950,055.18 = 382,574.18 : x
  2. Step 2: Convert to fraction form
    688,448/950,055.18 = 382,574.18/x
  3. Step 3: Cross multiply
    688,448x = 950,055.18 × 382,574.18
  4. Step 4: Simplify right side
    688,448x = 363,466,581,443.25
  5. Step 5: Solve for x
    x = 363,466,581,443.25/688,448
  6. Step 6: Final answer
    x = 527,950.67

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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.