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Finding the Fourth Proportional to 528,604.50, 730,079.73 and 348,123.18

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Solution

The fourth proportional to 528,604.50, 730,079.73 and 348,123.18 is: 480,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,604.50 : 730,079.73 = 348,123.18 : x
  2. Step 2: Convert to fraction form
    528,604.50/730,079.73 = 348,123.18/x
  3. Step 3: Cross multiply
    528,604.50x = 730,079.73 × 348,123.18
  4. Step 4: Simplify right side
    528,604.50x = 254,157,677,261.14
  5. Step 5: Solve for x
    x = 254,157,677,261.14/528,604.50
  6. Step 6: Final answer
    x = 480,808.77

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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.