Home / 767,005.60-1,150,508.40-431,082.40

Finding the Fourth Proportional to 767,005.60, 1,150,508.40 and 431,082.40

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Solution

The fourth proportional to 767,005.60, 1,150,508.40 and 431,082.40 is: 646,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,005.60 : 1,150,508.40 = 431,082.40 : x
  2. Step 2: Convert to fraction form
    767,005.60/1,150,508.40 = 431,082.40/x
  3. Step 3: Cross multiply
    767,005.60x = 1,150,508.40 × 431,082.40
  4. Step 4: Simplify right side
    767,005.60x = 495,963,922,292.16
  5. Step 5: Solve for x
    x = 495,963,922,292.16/767,005.60
  6. Step 6: Final answer
    x = 646,623.60

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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.