Home / 876,421.68-1,315,095.36-621,898.90

Finding the Fourth Proportional to 876,421.68, 1,315,095.36 and 621,898.90

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Solution

The fourth proportional to 876,421.68, 1,315,095.36 and 621,898.90 is: 933,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,421.68 : 1,315,095.36 = 621,898.90 : x
  2. Step 2: Convert to fraction form
    876,421.68/1,315,095.36 = 621,898.90/x
  3. Step 3: Cross multiply
    876,421.68x = 1,315,095.36 × 621,898.90
  4. Step 4: Simplify right side
    876,421.68x = 817,856,357,779.10
  5. Step 5: Solve for x
    x = 817,856,357,779.10/876,421.68
  6. Step 6: Final answer
    x = 933,176.78

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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.