Home / 876,687.20-1,315,030.80-502,402.40

Finding the Fourth Proportional to 876,687.20, 1,315,030.80 and 502,402.40

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Solution

The fourth proportional to 876,687.20, 1,315,030.80 and 502,402.40 is: 753,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,687.20 : 1,315,030.80 = 502,402.40 : x
  2. Step 2: Convert to fraction form
    876,687.20/1,315,030.80 = 502,402.40/x
  3. Step 3: Cross multiply
    876,687.20x = 1,315,030.80 × 502,402.40
  4. Step 4: Simplify right side
    876,687.20x = 660,674,629,993.92
  5. Step 5: Solve for x
    x = 660,674,629,993.92/876,687.20
  6. Step 6: Final answer
    x = 753,603.60

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1.5x scale

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.