Home / 577,376.20-865,416.30-278,000.20

Finding the Fourth Proportional to 577,376.20, 865,416.30 and 278,000.20

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Solution

The fourth proportional to 577,376.20, 865,416.30 and 278,000.20 is: 416,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,376.20 : 865,416.30 = 278,000.20 : x
  2. Step 2: Convert to fraction form
    577,376.20/865,416.30 = 278,000.20/x
  3. Step 3: Cross multiply
    577,376.20x = 865,416.30 × 278,000.20
  4. Step 4: Simplify right side
    577,376.20x = 240,585,904,483.26
  5. Step 5: Solve for x
    x = 240,585,904,483.26/577,376.20
  6. Step 6: Final answer
    x = 416,688.30

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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.