Home / 1,868,347.80-2,802,521.70-520,718.40

Finding the Fourth Proportional to 1,868,347.80, 2,802,521.70 and 520,718.40

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Solution

The fourth proportional to 1,868,347.80, 2,802,521.70 and 520,718.40 is: 781,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,347.80 : 2,802,521.70 = 520,718.40 : x
  2. Step 2: Convert to fraction form
    1,868,347.80/2,802,521.70 = 520,718.40/x
  3. Step 3: Cross multiply
    1,868,347.80x = 2,802,521.70 × 520,718.40
  4. Step 4: Simplify right side
    1,868,347.80x = 1,459,324,615,589.28
  5. Step 5: Solve for x
    x = 1,459,324,615,589.28/1,868,347.80
  6. Step 6: Final answer
    x = 781,077.60

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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.