Home / 1,220,482.35-1,684,365.03-676,788.57

Finding the Fourth Proportional to 1,220,482.35, 1,684,365.03 and 676,788.57

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Solution

The fourth proportional to 1,220,482.35, 1,684,365.03 and 676,788.57 is: 934,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,482.35 : 1,684,365.03 = 676,788.57 : x
  2. Step 2: Convert to fraction form
    1,220,482.35/1,684,365.03 = 676,788.57/x
  3. Step 3: Cross multiply
    1,220,482.35x = 1,684,365.03 × 676,788.57
  4. Step 4: Simplify right side
    1,220,482.35x = 1,139,959,000,011.71
  5. Step 5: Solve for x
    x = 1,139,959,000,011.71/1,220,482.35
  6. Step 6: Final answer
    x = 934,023.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.