Home / 1,553,015.60-2,328,442.56-687,980.68

Finding the Fourth Proportional to 1,553,015.60, 2,328,442.56 and 687,980.68

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Solution

The fourth proportional to 1,553,015.60, 2,328,442.56 and 687,980.68 is: 1,031,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,015.60 : 2,328,442.56 = 687,980.68 : x
  2. Step 2: Convert to fraction form
    1,553,015.60/2,328,442.56 = 687,980.68/x
  3. Step 3: Cross multiply
    1,553,015.60x = 2,328,442.56 × 687,980.68
  4. Step 4: Simplify right side
    1,553,015.60x = 1,601,923,495,769.74
  5. Step 5: Solve for x
    x = 1,601,923,495,769.74/1,553,015.60
  6. Step 6: Final answer
    x = 1,031,492.21

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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.