Home / 720,630.15-1,080,989.81-240,901.12

Finding the Fourth Proportional to 720,630.15, 1,080,989.81 and 240,901.12

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Solution

The fourth proportional to 720,630.15, 1,080,989.81 and 240,901.12 is: 361,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,630.15 : 1,080,989.81 = 240,901.12 : x
  2. Step 2: Convert to fraction form
    720,630.15/1,080,989.81 = 240,901.12/x
  3. Step 3: Cross multiply
    720,630.15x = 1,080,989.81 × 240,901.12
  4. Step 4: Simplify right side
    720,630.15x = 260,411,655,937.59
  5. Step 5: Solve for x
    x = 260,411,655,937.59/720,630.15
  6. Step 6: Final answer
    x = 361,366.58

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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.