Home / 1,109,853.40-1,664,780.10-578,412.40

Finding the Fourth Proportional to 1,109,853.40, 1,664,780.10 and 578,412.40

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Solution

The fourth proportional to 1,109,853.40, 1,664,780.10 and 578,412.40 is: 867,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,853.40 : 1,664,780.10 = 578,412.40 : x
  2. Step 2: Convert to fraction form
    1,109,853.40/1,664,780.10 = 578,412.40/x
  3. Step 3: Cross multiply
    1,109,853.40x = 1,664,780.10 × 578,412.40
  4. Step 4: Simplify right side
    1,109,853.40x = 962,929,453,113.24
  5. Step 5: Solve for x
    x = 962,929,453,113.24/1,109,853.40
  6. Step 6: Final answer
    x = 867,618.60

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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.