Home / 688,631.04-950,288.08-378,534.66

Finding the Fourth Proportional to 688,631.04, 950,288.08 and 378,534.66

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Solution

The fourth proportional to 688,631.04, 950,288.08 and 378,534.66 is: 522,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,631.04 : 950,288.08 = 378,534.66 : x
  2. Step 2: Convert to fraction form
    688,631.04/950,288.08 = 378,534.66/x
  3. Step 3: Cross multiply
    688,631.04x = 950,288.08 × 378,534.66
  4. Step 4: Simplify right side
    688,631.04x = 359,716,975,264.85
  5. Step 5: Solve for x
    x = 359,716,975,264.85/688,631.04
  6. Step 6: Final answer
    x = 522,365.32

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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.