Home / 768,068.80-1,152,103.20-487,902.40

Finding the Fourth Proportional to 768,068.80, 1,152,103.20 and 487,902.40

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Solution

The fourth proportional to 768,068.80, 1,152,103.20 and 487,902.40 is: 731,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,068.80 : 1,152,103.20 = 487,902.40 : x
  2. Step 2: Convert to fraction form
    768,068.80/1,152,103.20 = 487,902.40/x
  3. Step 3: Cross multiply
    768,068.80x = 1,152,103.20 × 487,902.40
  4. Step 4: Simplify right side
    768,068.80x = 562,113,916,327.68
  5. Step 5: Solve for x
    x = 562,113,916,327.68/768,068.80
  6. Step 6: Final answer
    x = 731,853.60

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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.