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Finding the Fourth Proportional to 652,012.80, 976,852.80 and 551,702.40

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Solution

The fourth proportional to 652,012.80, 976,852.80 and 551,702.40 is: 826,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,012.80 : 976,852.80 = 551,702.40 : x
  2. Step 2: Convert to fraction form
    652,012.80/976,852.80 = 551,702.40/x
  3. Step 3: Cross multiply
    652,012.80x = 976,852.80 × 551,702.40
  4. Step 4: Simplify right side
    652,012.80x = 538,932,034,206.72
  5. Step 5: Solve for x
    x = 538,932,034,206.72/652,012.80
  6. Step 6: Final answer
    x = 826,566.65

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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.