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Finding the Fourth Proportional to 894,304.80, 1,234,137.60 and 512,330.40

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Solution

The fourth proportional to 894,304.80, 1,234,137.60 and 512,330.40 is: 707,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,304.80 : 1,234,137.60 = 512,330.40 : x
  2. Step 2: Convert to fraction form
    894,304.80/1,234,137.60 = 512,330.40/x
  3. Step 3: Cross multiply
    894,304.80x = 1,234,137.60 × 512,330.40
  4. Step 4: Simplify right side
    894,304.80x = 632,286,210,263.04
  5. Step 5: Solve for x
    x = 632,286,210,263.04/894,304.80
  6. Step 6: Final answer
    x = 707,014.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.