Home / 1,359,503.78-1,875,584.25-778,416.38

Finding the Fourth Proportional to 1,359,503.78, 1,875,584.25 and 778,416.38

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Solution

The fourth proportional to 1,359,503.78, 1,875,584.25 and 778,416.38 is: 1,073,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,503.78 : 1,875,584.25 = 778,416.38 : x
  2. Step 2: Convert to fraction form
    1,359,503.78/1,875,584.25 = 778,416.38/x
  3. Step 3: Cross multiply
    1,359,503.78x = 1,875,584.25 × 778,416.38
  4. Step 4: Simplify right side
    1,359,503.78x = 1,459,985,502,270.02
  5. Step 5: Solve for x
    x = 1,459,985,502,270.02/1,359,503.78
  6. Step 6: Final answer
    x = 1,073,910.59

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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.