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Finding the Fourth Proportional to 488,333.96, 729,176.88 and 430,928.88

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Solution

The fourth proportional to 488,333.96, 729,176.88 and 430,928.88 is: 643,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,333.96 : 729,176.88 = 430,928.88 : x
  2. Step 2: Convert to fraction form
    488,333.96/729,176.88 = 430,928.88/x
  3. Step 3: Cross multiply
    488,333.96x = 729,176.88 × 430,928.88
  4. Step 4: Simplify right side
    488,333.96x = 314,223,376,220.29
  5. Step 5: Solve for x
    x = 314,223,376,220.29/488,333.96
  6. Step 6: Final answer
    x = 643,460.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.