Home / 651,700.20-977,987.70-385,177.80

Finding the Fourth Proportional to 651,700.20, 977,987.70 and 385,177.80

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Solution

The fourth proportional to 651,700.20, 977,987.70 and 385,177.80 is: 578,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,700.20 : 977,987.70 = 385,177.80 : x
  2. Step 2: Convert to fraction form
    651,700.20/977,987.70 = 385,177.80/x
  3. Step 3: Cross multiply
    651,700.20x = 977,987.70 × 385,177.80
  4. Step 4: Simplify right side
    651,700.20x = 376,699,150,713.06
  5. Step 5: Solve for x
    x = 376,699,150,713.06/651,700.20
  6. Step 6: Final answer
    x = 578,025.22

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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.