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Finding the Fourth Proportional to 528,602.50, 730,076.94 and 348,121.15

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Solution

The fourth proportional to 528,602.50, 730,076.94 and 348,121.15 is: 480,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,602.50 : 730,076.94 = 348,121.15 : x
  2. Step 2: Convert to fraction form
    528,602.50/730,076.94 = 348,121.15/x
  3. Step 3: Cross multiply
    528,602.50x = 730,076.94 × 348,121.15
  4. Step 4: Simplify right side
    528,602.50x = 254,155,223,941.28
  5. Step 5: Solve for x
    x = 254,155,223,941.28/528,602.50
  6. Step 6: Final answer
    x = 480,805.94

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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.