Home / 651,643.80-977,417.10-272,466.60

Finding the Fourth Proportional to 651,643.80, 977,417.10 and 272,466.60

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Solution

The fourth proportional to 651,643.80, 977,417.10 and 272,466.60 is: 408,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,643.80 : 977,417.10 = 272,466.60 : x
  2. Step 2: Convert to fraction form
    651,643.80/977,417.10 = 272,466.60/x
  3. Step 3: Cross multiply
    651,643.80x = 977,417.10 × 272,466.60
  4. Step 4: Simplify right side
    651,643.80x = 266,313,514,018.86
  5. Step 5: Solve for x
    x = 266,313,514,018.86/651,643.80
  6. Step 6: Final answer
    x = 408,679.58

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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.