Home / 891,818.40-1,335,913.20-553,821.60

Finding the Fourth Proportional to 891,818.40, 1,335,913.20 and 553,821.60

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Solution

The fourth proportional to 891,818.40, 1,335,913.20 and 553,821.60 is: 829,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,818.40 : 1,335,913.20 = 553,821.60 : x
  2. Step 2: Convert to fraction form
    891,818.40/1,335,913.20 = 553,821.60/x
  3. Step 3: Cross multiply
    891,818.40x = 1,335,913.20 × 553,821.60
  4. Step 4: Simplify right side
    891,818.40x = 739,857,585,885.12
  5. Step 5: Solve for x
    x = 739,857,585,885.12/891,818.40
  6. Step 6: Final answer
    x = 829,605.65

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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.