Home / 805,298.95-1,111,204.87-499,263.81

Finding the Fourth Proportional to 805,298.95, 1,111,204.87 and 499,263.81

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Solution

The fourth proportional to 805,298.95, 1,111,204.87 and 499,263.81 is: 688,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,298.95 : 1,111,204.87 = 499,263.81 : x
  2. Step 2: Convert to fraction form
    805,298.95/1,111,204.87 = 499,263.81/x
  3. Step 3: Cross multiply
    805,298.95x = 1,111,204.87 × 499,263.81
  4. Step 4: Simplify right side
    805,298.95x = 554,784,377,086.76
  5. Step 5: Solve for x
    x = 554,784,377,086.76/805,298.95
  6. Step 6: Final answer
    x = 688,917.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.