Home / 891,351.40-1,335,860.70-358,436.20

Finding the Fourth Proportional to 891,351.40, 1,335,860.70 and 358,436.20

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Solution

The fourth proportional to 891,351.40, 1,335,860.70 and 358,436.20 is: 537,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,351.40 : 1,335,860.70 = 358,436.20 : x
  2. Step 2: Convert to fraction form
    891,351.40/1,335,860.70 = 358,436.20/x
  3. Step 3: Cross multiply
    891,351.40x = 1,335,860.70 × 358,436.20
  4. Step 4: Simplify right side
    891,351.40x = 478,820,833,037.34
  5. Step 5: Solve for x
    x = 478,820,833,037.34/891,351.40
  6. Step 6: Final answer
    x = 537,185.26

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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.