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Finding the Fourth Proportional to 543,047.20, 814,570.80 and 507,617.80

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Solution

The fourth proportional to 543,047.20, 814,570.80 and 507,617.80 is: 761,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,047.20 : 814,570.80 = 507,617.80 : x
  2. Step 2: Convert to fraction form
    543,047.20/814,570.80 = 507,617.80/x
  3. Step 3: Cross multiply
    543,047.20x = 814,570.80 × 507,617.80
  4. Step 4: Simplify right side
    543,047.20x = 413,490,637,440.24
  5. Step 5: Solve for x
    x = 413,490,637,440.24/543,047.20
  6. Step 6: Final answer
    x = 761,426.70

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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.