Home / 545,225.20-816,088.20-426,252.40

Finding the Fourth Proportional to 545,225.20, 816,088.20 and 426,252.40

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Solution

The fourth proportional to 545,225.20, 816,088.20 and 426,252.40 is: 638,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,225.20 : 816,088.20 = 426,252.40 : x
  2. Step 2: Convert to fraction form
    545,225.20/816,088.20 = 426,252.40/x
  3. Step 3: Cross multiply
    545,225.20x = 816,088.20 × 426,252.40
  4. Step 4: Simplify right side
    545,225.20x = 347,859,553,861.68
  5. Step 5: Solve for x
    x = 347,859,553,861.68/545,225.20
  6. Step 6: Final answer
    x = 638,010.78

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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.