Home / 1,445,869.91-2,169,258.17-870,121.51

Finding the Fourth Proportional to 1,445,869.91, 2,169,258.17 and 870,121.51

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Solution

The fourth proportional to 1,445,869.91, 2,169,258.17 and 870,121.51 is: 1,305,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,869.91 : 2,169,258.17 = 870,121.51 : x
  2. Step 2: Convert to fraction form
    1,445,869.91/2,169,258.17 = 870,121.51/x
  3. Step 3: Cross multiply
    1,445,869.91x = 2,169,258.17 × 870,121.51
  4. Step 4: Simplify right side
    1,445,869.91x = 1,887,518,184,686.48
  5. Step 5: Solve for x
    x = 1,887,518,184,686.48/1,445,869.91
  6. Step 6: Final answer
    x = 1,305,455.05

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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.