Home / 876,867.30-1,315,300.95-778,889.70

Finding the Fourth Proportional to 876,867.30, 1,315,300.95 and 778,889.70

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Solution

The fourth proportional to 876,867.30, 1,315,300.95 and 778,889.70 is: 1,168,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,867.30 : 1,315,300.95 = 778,889.70 : x
  2. Step 2: Convert to fraction form
    876,867.30/1,315,300.95 = 778,889.70/x
  3. Step 3: Cross multiply
    876,867.30x = 1,315,300.95 × 778,889.70
  4. Step 4: Simplify right side
    876,867.30x = 1,024,474,362,355.21
  5. Step 5: Solve for x
    x = 1,024,474,362,355.21/876,867.30
  6. Step 6: Final answer
    x = 1,168,334.55

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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.