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Finding the Fourth Proportional to 983,608.60, 1,475,412.90 and 977,387.80

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Solution

The fourth proportional to 983,608.60, 1,475,412.90 and 977,387.80 is: 1,466,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,608.60 : 1,475,412.90 = 977,387.80 : x
  2. Step 2: Convert to fraction form
    983,608.60/1,475,412.90 = 977,387.80/x
  3. Step 3: Cross multiply
    983,608.60x = 1,475,412.90 × 977,387.80
  4. Step 4: Simplify right side
    983,608.60x = 1,442,050,568,422.62
  5. Step 5: Solve for x
    x = 1,442,050,568,422.62/983,608.60
  6. Step 6: Final answer
    x = 1,466,081.70

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1.5x scale

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.