Home / 768,143.20-1,152,214.80-502,722.40

Finding the Fourth Proportional to 768,143.20, 1,152,214.80 and 502,722.40

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Solution

The fourth proportional to 768,143.20, 1,152,214.80 and 502,722.40 is: 754,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,143.20 : 1,152,214.80 = 502,722.40 : x
  2. Step 2: Convert to fraction form
    768,143.20/1,152,214.80 = 502,722.40/x
  3. Step 3: Cross multiply
    768,143.20x = 1,152,214.80 × 502,722.40
  4. Step 4: Simplify right side
    768,143.20x = 579,244,189,571.52
  5. Step 5: Solve for x
    x = 579,244,189,571.52/768,143.20
  6. Step 6: Final answer
    x = 754,083.60

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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.