Home / 1,398,856.86-2,095,539.48-725,378.40

Finding the Fourth Proportional to 1,398,856.86, 2,095,539.48 and 725,378.40

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Solution

The fourth proportional to 1,398,856.86, 2,095,539.48 and 725,378.40 is: 1,086,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,856.86 : 2,095,539.48 = 725,378.40 : x
  2. Step 2: Convert to fraction form
    1,398,856.86/2,095,539.48 = 725,378.40/x
  3. Step 3: Cross multiply
    1,398,856.86x = 2,095,539.48 × 725,378.40
  4. Step 4: Simplify right side
    1,398,856.86x = 1,520,059,075,139.23
  5. Step 5: Solve for x
    x = 1,520,059,075,139.23/1,398,856.86
  6. Step 6: Final answer
    x = 1,086,643.76

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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.