Home / 1,036,720.90-1,555,081.35-977,671.90

Finding the Fourth Proportional to 1,036,720.90, 1,555,081.35 and 977,671.90

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Solution

The fourth proportional to 1,036,720.90, 1,555,081.35 and 977,671.90 is: 1,466,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,720.90 : 1,555,081.35 = 977,671.90 : x
  2. Step 2: Convert to fraction form
    1,036,720.90/1,555,081.35 = 977,671.90/x
  3. Step 3: Cross multiply
    1,036,720.90x = 1,555,081.35 × 977,671.90
  4. Step 4: Simplify right side
    1,036,720.90x = 1,520,359,338,109.07
  5. Step 5: Solve for x
    x = 1,520,359,338,109.07/1,036,720.90
  6. Step 6: Final answer
    x = 1,466,507.85

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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.