Home / 1,663,421.60-2,495,132.40-1,320,937.40

Finding the Fourth Proportional to 1,663,421.60, 2,495,132.40 and 1,320,937.40

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Solution

The fourth proportional to 1,663,421.60, 2,495,132.40 and 1,320,937.40 is: 1,981,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,421.60 : 2,495,132.40 = 1,320,937.40 : x
  2. Step 2: Convert to fraction form
    1,663,421.60/2,495,132.40 = 1,320,937.40/x
  3. Step 3: Cross multiply
    1,663,421.60x = 2,495,132.40 × 1,320,937.40
  4. Step 4: Simplify right side
    1,663,421.60x = 3,295,913,705,111.76
  5. Step 5: Solve for x
    x = 3,295,913,705,111.76/1,663,421.60
  6. Step 6: Final answer
    x = 1,981,406.10

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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.