Home / 853,904.20-1,279,473.90-537,795.40

Finding the Fourth Proportional to 853,904.20, 1,279,473.90 and 537,795.40

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Solution

The fourth proportional to 853,904.20, 1,279,473.90 and 537,795.40 is: 805,822.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,904.20 : 1,279,473.90 = 537,795.40 : x
  2. Step 2: Convert to fraction form
    853,904.20/1,279,473.90 = 537,795.40/x
  3. Step 3: Cross multiply
    853,904.20x = 1,279,473.90 × 537,795.40
  4. Step 4: Simplify right side
    853,904.20x = 688,095,177,840.06
  5. Step 5: Solve for x
    x = 688,095,177,840.06/853,904.20
  6. Step 6: Final answer
    x = 805,822.45

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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.