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Finding the Fourth Proportional to 767,589.60, 1,151,373.60 and 346,864.80

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Solution

The fourth proportional to 767,589.60, 1,151,373.60 and 346,864.80 is: 520,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,589.60 : 1,151,373.60 = 346,864.80 : x
  2. Step 2: Convert to fraction form
    767,589.60/1,151,373.60 = 346,864.80/x
  3. Step 3: Cross multiply
    767,589.60x = 1,151,373.60 × 346,864.80
  4. Step 4: Simplify right side
    767,589.60x = 399,370,973,489.28
  5. Step 5: Solve for x
    x = 399,370,973,489.28/767,589.60
  6. Step 6: Final answer
    x = 520,292.32

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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.