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Finding the Fourth Proportional to 768,064.80, 1,152,356.40 and 368,954.40

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Solution

The fourth proportional to 768,064.80, 1,152,356.40 and 368,954.40 is: 553,556.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,064.80 : 1,152,356.40 = 368,954.40 : x
  2. Step 2: Convert to fraction form
    768,064.80/1,152,356.40 = 368,954.40/x
  3. Step 3: Cross multiply
    768,064.80x = 1,152,356.40 × 368,954.40
  4. Step 4: Simplify right side
    768,064.80x = 425,166,964,148.16
  5. Step 5: Solve for x
    x = 425,166,964,148.16/768,064.80
  6. Step 6: Final answer
    x = 553,556.11

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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.