Home / 927,063.84-1,390,667.64-278,589.39

Finding the Fourth Proportional to 927,063.84, 1,390,667.64 and 278,589.39

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Solution

The fourth proportional to 927,063.84, 1,390,667.64 and 278,589.39 is: 417,905.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,063.84 : 1,390,667.64 = 278,589.39 : x
  2. Step 2: Convert to fraction form
    927,063.84/1,390,667.64 = 278,589.39/x
  3. Step 3: Cross multiply
    927,063.84x = 1,390,667.64 × 278,589.39
  4. Step 4: Simplify right side
    927,063.84x = 387,425,249,520.34
  5. Step 5: Solve for x
    x = 387,425,249,520.34/927,063.84
  6. Step 6: Final answer
    x = 417,905.69

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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.