Home / 1,402,146.13-2,102,378.59-643,036.81

Finding the Fourth Proportional to 1,402,146.13, 2,102,378.59 and 643,036.81

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Solution

The fourth proportional to 1,402,146.13, 2,102,378.59 and 643,036.81 is: 964,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,146.13 : 2,102,378.59 = 643,036.81 : x
  2. Step 2: Convert to fraction form
    1,402,146.13/2,102,378.59 = 643,036.81/x
  3. Step 3: Cross multiply
    1,402,146.13x = 2,102,378.59 × 643,036.81
  4. Step 4: Simplify right side
    1,402,146.13x = 1,351,906,821,925.90
  5. Step 5: Solve for x
    x = 1,351,906,821,925.90/1,402,146.13
  6. Step 6: Final answer
    x = 964,169.71

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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.