Home / 891,350.40-1,335,859.20-358,435.20

Finding the Fourth Proportional to 891,350.40, 1,335,859.20 and 358,435.20

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Solution

The fourth proportional to 891,350.40, 1,335,859.20 and 358,435.20 is: 537,183.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,350.40 : 1,335,859.20 = 358,435.20 : x
  2. Step 2: Convert to fraction form
    891,350.40/1,335,859.20 = 358,435.20/x
  3. Step 3: Cross multiply
    891,350.40x = 1,335,859.20 × 358,435.20
  4. Step 4: Simplify right side
    891,350.40x = 478,818,959,523.84
  5. Step 5: Solve for x
    x = 478,818,959,523.84/891,350.40
  6. Step 6: Final answer
    x = 537,183.76

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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.