Home / 991,340.74-1,487,043.43-471,903.30

Finding the Fourth Proportional to 991,340.74, 1,487,043.43 and 471,903.30

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Solution

The fourth proportional to 991,340.74, 1,487,043.43 and 471,903.30 is: 707,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,340.74 : 1,487,043.43 = 471,903.30 : x
  2. Step 2: Convert to fraction form
    991,340.74/1,487,043.43 = 471,903.30/x
  3. Step 3: Cross multiply
    991,340.74x = 1,487,043.43 × 471,903.30
  4. Step 4: Simplify right side
    991,340.74x = 701,740,700,680.56
  5. Step 5: Solve for x
    x = 701,740,700,680.56/991,340.74
  6. Step 6: Final answer
    x = 707,870.33

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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.