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Finding the Fourth Proportional to 884,707.60, 1,328,443.80 and 511,459.60

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Solution

The fourth proportional to 884,707.60, 1,328,443.80 and 511,459.60 is: 767,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,707.60 : 1,328,443.80 = 511,459.60 : x
  2. Step 2: Convert to fraction form
    884,707.60/1,328,443.80 = 511,459.60/x
  3. Step 3: Cross multiply
    884,707.60x = 1,328,443.80 × 511,459.60
  4. Step 4: Simplify right side
    884,707.60x = 679,445,334,570.48
  5. Step 5: Solve for x
    x = 679,445,334,570.48/884,707.60
  6. Step 6: Final answer
    x = 767,988.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.