Home / 999,145.77-1,378,820.18-540,259.25

Finding the Fourth Proportional to 999,145.77, 1,378,820.18 and 540,259.25

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Solution

The fourth proportional to 999,145.77, 1,378,820.18 and 540,259.25 is: 745,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,145.77 : 1,378,820.18 = 540,259.25 : x
  2. Step 2: Convert to fraction form
    999,145.77/1,378,820.18 = 540,259.25/x
  3. Step 3: Cross multiply
    999,145.77x = 1,378,820.18 × 540,259.25
  4. Step 4: Simplify right side
    999,145.77x = 744,920,350,788.21
  5. Step 5: Solve for x
    x = 744,920,350,788.21/999,145.77
  6. Step 6: Final answer
    x = 745,557.23

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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.