Home / 992,457.60-1,488,686.40-571,387.20

Finding the Fourth Proportional to 992,457.60, 1,488,686.40 and 571,387.20

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Solution

The fourth proportional to 992,457.60, 1,488,686.40 and 571,387.20 is: 857,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,457.60 : 1,488,686.40 = 571,387.20 : x
  2. Step 2: Convert to fraction form
    992,457.60/1,488,686.40 = 571,387.20/x
  3. Step 3: Cross multiply
    992,457.60x = 1,488,686.40 × 571,387.20
  4. Step 4: Simplify right side
    992,457.60x = 850,616,353,774.08
  5. Step 5: Solve for x
    x = 850,616,353,774.08/992,457.60
  6. Step 6: Final answer
    x = 857,080.80

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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.