Home / 991,752.80-1,489,184.40-571,848.80

Finding the Fourth Proportional to 991,752.80, 1,489,184.40 and 571,848.80

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Solution

The fourth proportional to 991,752.80, 1,489,184.40 and 571,848.80 is: 858,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,752.80 : 1,489,184.40 = 571,848.80 : x
  2. Step 2: Convert to fraction form
    991,752.80/1,489,184.40 = 571,848.80/x
  3. Step 3: Cross multiply
    991,752.80x = 1,489,184.40 × 571,848.80
  4. Step 4: Simplify right side
    991,752.80x = 851,588,312,118.72
  5. Step 5: Solve for x
    x = 851,588,312,118.72/991,752.80
  6. Step 6: Final answer
    x = 858,669.93

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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.