Home / 1,657,459.60-2,486,189.40-858,985.90

Finding the Fourth Proportional to 1,657,459.60, 2,486,189.40 and 858,985.90

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Solution

The fourth proportional to 1,657,459.60, 2,486,189.40 and 858,985.90 is: 1,288,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,459.60 : 2,486,189.40 = 858,985.90 : x
  2. Step 2: Convert to fraction form
    1,657,459.60/2,486,189.40 = 858,985.90/x
  3. Step 3: Cross multiply
    1,657,459.60x = 2,486,189.40 × 858,985.90
  4. Step 4: Simplify right side
    1,657,459.60x = 2,135,601,639,329.46
  5. Step 5: Solve for x
    x = 2,135,601,639,329.46/1,657,459.60
  6. Step 6: Final answer
    x = 1,288,478.85

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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.