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Finding the Fourth Proportional to 653.58, 902.16 and 432.72

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Solution

The fourth proportional to 653.58, 902.16 and 432.72 is: 597.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.58 : 902.16 = 432.72 : x
  2. Step 2: Convert to fraction form
    653.58/902.16 = 432.72/x
  3. Step 3: Cross multiply
    653.58x = 902.16 × 432.72
  4. Step 4: Simplify right side
    653.58x = 390,382.68
  5. Step 5: Solve for x
    x = 390,382.68/653.58
  6. Step 6: Final answer
    x = 597.30

Related Problems

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Double scale
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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.