Home / 1,643,000.40-2,460,353.40-1,078,981.20

Finding the Fourth Proportional to 1,643,000.40, 2,460,353.40 and 1,078,981.20

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Solution

The fourth proportional to 1,643,000.40, 2,460,353.40 and 1,078,981.20 is: 1,615,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,000.40 : 2,460,353.40 = 1,078,981.20 : x
  2. Step 2: Convert to fraction form
    1,643,000.40/2,460,353.40 = 1,078,981.20/x
  3. Step 3: Cross multiply
    1,643,000.40x = 2,460,353.40 × 1,078,981.20
  4. Step 4: Simplify right side
    1,643,000.40x = 2,654,675,063,956.08
  5. Step 5: Solve for x
    x = 2,654,675,063,956.08/1,643,000.40
  6. Step 6: Final answer
    x = 1,615,748.28

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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.