Home / 1,210,569.60-1,816,891.20-537,686.40

Finding the Fourth Proportional to 1,210,569.60, 1,816,891.20 and 537,686.40

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Solution

The fourth proportional to 1,210,569.60, 1,816,891.20 and 537,686.40 is: 806,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,569.60 : 1,816,891.20 = 537,686.40 : x
  2. Step 2: Convert to fraction form
    1,210,569.60/1,816,891.20 = 537,686.40/x
  3. Step 3: Cross multiply
    1,210,569.60x = 1,816,891.20 × 537,686.40
  4. Step 4: Simplify right side
    1,210,569.60x = 976,917,688,519.68
  5. Step 5: Solve for x
    x = 976,917,688,519.68/1,210,569.60
  6. Step 6: Final answer
    x = 806,990.10

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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.