Home / 893,444.70-1,340,404.65-387,788.70

Finding the Fourth Proportional to 893,444.70, 1,340,404.65 and 387,788.70

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Solution

The fourth proportional to 893,444.70, 1,340,404.65 and 387,788.70 is: 581,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,444.70 : 1,340,404.65 = 387,788.70 : x
  2. Step 2: Convert to fraction form
    893,444.70/1,340,404.65 = 387,788.70/x
  3. Step 3: Cross multiply
    893,444.70x = 1,340,404.65 × 387,788.70
  4. Step 4: Simplify right side
    893,444.70x = 519,793,776,697.46
  5. Step 5: Solve for x
    x = 519,793,776,697.46/893,444.70
  6. Step 6: Final answer
    x = 581,786.18

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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.