Home / 767,726.79-1,059,463.08-428,195.04

Finding the Fourth Proportional to 767,726.79, 1,059,463.08 and 428,195.04

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Solution

The fourth proportional to 767,726.79, 1,059,463.08 and 428,195.04 is: 590,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,726.79 : 1,059,463.08 = 428,195.04 : x
  2. Step 2: Convert to fraction form
    767,726.79/1,059,463.08 = 428,195.04/x
  3. Step 3: Cross multiply
    767,726.79x = 1,059,463.08 × 428,195.04
  4. Step 4: Simplify right side
    767,726.79x = 453,656,835,919.12
  5. Step 5: Solve for x
    x = 453,656,835,919.12/767,726.79
  6. Step 6: Final answer
    x = 590,909.22

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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.