Home / 767,017.20-1,151,044.20-430,057.20

Finding the Fourth Proportional to 767,017.20, 1,151,044.20 and 430,057.20

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Solution

The fourth proportional to 767,017.20, 1,151,044.20 and 430,057.20 is: 645,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,017.20 : 1,151,044.20 = 430,057.20 : x
  2. Step 2: Convert to fraction form
    767,017.20/1,151,044.20 = 430,057.20/x
  3. Step 3: Cross multiply
    767,017.20x = 1,151,044.20 × 430,057.20
  4. Step 4: Simplify right side
    767,017.20x = 495,014,845,728.24
  5. Step 5: Solve for x
    x = 495,014,845,728.24/767,017.20
  6. Step 6: Final answer
    x = 645,376.46

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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.