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Finding the Fourth Proportional to 978,094.80, 1,468,006.20 and 578,235.60

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Solution

The fourth proportional to 978,094.80, 1,468,006.20 and 578,235.60 is: 867,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,094.80 : 1,468,006.20 = 578,235.60 : x
  2. Step 2: Convert to fraction form
    978,094.80/1,468,006.20 = 578,235.60/x
  3. Step 3: Cross multiply
    978,094.80x = 1,468,006.20 × 578,235.60
  4. Step 4: Simplify right side
    978,094.80x = 848,853,445,860.72
  5. Step 5: Solve for x
    x = 848,853,445,860.72/978,094.80
  6. Step 6: Final answer
    x = 867,864.18

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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.