Home / 656,276.20-984,803.10-478,335.40

Finding the Fourth Proportional to 656,276.20, 984,803.10 and 478,335.40

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Solution

The fourth proportional to 656,276.20, 984,803.10 and 478,335.40 is: 717,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,276.20 : 984,803.10 = 478,335.40 : x
  2. Step 2: Convert to fraction form
    656,276.20/984,803.10 = 478,335.40/x
  3. Step 3: Cross multiply
    656,276.20x = 984,803.10 × 478,335.40
  4. Step 4: Simplify right side
    656,276.20x = 471,066,184,759.74
  5. Step 5: Solve for x
    x = 471,066,184,759.74/656,276.20
  6. Step 6: Final answer
    x = 717,786.48

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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.