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Finding the Fourth Proportional to 528,581.50, 730,047.95 and 348,100.14

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Solution

The fourth proportional to 528,581.50, 730,047.95 and 348,100.14 is: 480,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,581.50 : 730,047.95 = 348,100.14 : x
  2. Step 2: Convert to fraction form
    528,581.50/730,047.95 = 348,100.14/x
  3. Step 3: Cross multiply
    528,581.50x = 730,047.95 × 348,100.14
  4. Step 4: Simplify right side
    528,581.50x = 254,129,793,601.71
  5. Step 5: Solve for x
    x = 254,129,793,601.71/528,581.50
  6. Step 6: Final answer
    x = 480,776.94

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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.