Home / 651,631.80-977,399.10-272,454.60

Finding the Fourth Proportional to 651,631.80, 977,399.10 and 272,454.60

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Solution

The fourth proportional to 651,631.80, 977,399.10 and 272,454.60 is: 408,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,631.80 : 977,399.10 = 272,454.60 : x
  2. Step 2: Convert to fraction form
    651,631.80/977,399.10 = 272,454.60/x
  3. Step 3: Cross multiply
    651,631.80x = 977,399.10 × 272,454.60
  4. Step 4: Simplify right side
    651,631.80x = 266,296,880,830.86
  5. Step 5: Solve for x
    x = 266,296,880,830.86/651,631.80
  6. Step 6: Final answer
    x = 408,661.58

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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.