Home / 876,688.20-1,315,032.30-578,089.80

Finding the Fourth Proportional to 876,688.20, 1,315,032.30 and 578,089.80

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Solution

The fourth proportional to 876,688.20, 1,315,032.30 and 578,089.80 is: 867,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,688.20 : 1,315,032.30 = 578,089.80 : x
  2. Step 2: Convert to fraction form
    876,688.20/1,315,032.30 = 578,089.80/x
  3. Step 3: Cross multiply
    876,688.20x = 1,315,032.30 × 578,089.80
  4. Step 4: Simplify right side
    876,688.20x = 760,206,759,300.54
  5. Step 5: Solve for x
    x = 760,206,759,300.54/876,688.20
  6. Step 6: Final answer
    x = 867,134.70

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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.