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Finding the Fourth Proportional to 528,526.68, 729,972.78 and 348,045.72

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Solution

The fourth proportional to 528,526.68, 729,972.78 and 348,045.72 is: 480,702.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,526.68 : 729,972.78 = 348,045.72 : x
  2. Step 2: Convert to fraction form
    528,526.68/729,972.78 = 348,045.72/x
  3. Step 3: Cross multiply
    528,526.68x = 729,972.78 × 348,045.72
  4. Step 4: Simplify right side
    528,526.68x = 254,063,901,795.50
  5. Step 5: Solve for x
    x = 254,063,901,795.50/528,526.68
  6. Step 6: Final answer
    x = 480,702.13

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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.