Home / 1,103,265.20-1,654,897.80-393,316.40

Finding the Fourth Proportional to 1,103,265.20, 1,654,897.80 and 393,316.40

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Solution

The fourth proportional to 1,103,265.20, 1,654,897.80 and 393,316.40 is: 589,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,265.20 : 1,654,897.80 = 393,316.40 : x
  2. Step 2: Convert to fraction form
    1,103,265.20/1,654,897.80 = 393,316.40/x
  3. Step 3: Cross multiply
    1,103,265.20x = 1,654,897.80 × 393,316.40
  4. Step 4: Simplify right side
    1,103,265.20x = 650,898,445,063.92
  5. Step 5: Solve for x
    x = 650,898,445,063.92/1,103,265.20
  6. Step 6: Final answer
    x = 589,974.60

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1.5x scale

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.