Home / 1,470,986.15-2,209,800.89-872,340

Finding the Fourth Proportional to 1,470,986.15, 2,209,800.89 and 872,340

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Solution

The fourth proportional to 1,470,986.15, 2,209,800.89 and 872,340 is: 1,310,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470,986.15 : 2,209,800.89 = 872,340 : x
  2. Step 2: Convert to fraction form
    1,470,986.15/2,209,800.89 = 872,340/x
  3. Step 3: Cross multiply
    1,470,986.15x = 2,209,800.89 × 872,340
  4. Step 4: Simplify right side
    1,470,986.15x = 1,927,697,704,020.90
  5. Step 5: Solve for x
    x = 1,927,697,704,020.90/1,470,986.15
  6. Step 6: Final answer
    x = 1,310,479.85

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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.