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Finding the Fourth Proportional to 653.04, 975.48 and 555.84

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Solution

The fourth proportional to 653.04, 975.48 and 555.84 is: 830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.04 : 975.48 = 555.84 : x
  2. Step 2: Convert to fraction form
    653.04/975.48 = 555.84/x
  3. Step 3: Cross multiply
    653.04x = 975.48 × 555.84
  4. Step 4: Simplify right side
    653.04x = 542,210.80
  5. Step 5: Solve for x
    x = 542,210.80/653.04
  6. Step 6: Final answer
    x = 830.29

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Double scale
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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.