Home / 980,878.30-1,471,317.45-507,708.70

Finding the Fourth Proportional to 980,878.30, 1,471,317.45 and 507,708.70

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Solution

The fourth proportional to 980,878.30, 1,471,317.45 and 507,708.70 is: 761,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,878.30 : 1,471,317.45 = 507,708.70 : x
  2. Step 2: Convert to fraction form
    980,878.30/1,471,317.45 = 507,708.70/x
  3. Step 3: Cross multiply
    980,878.30x = 1,471,317.45 × 507,708.70
  4. Step 4: Simplify right side
    980,878.30x = 747,000,669,826.82
  5. Step 5: Solve for x
    x = 747,000,669,826.82/980,878.30
  6. Step 6: Final answer
    x = 761,563.05

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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.