Home / 942,490.11-1,413,199.59-643,332.81

Finding the Fourth Proportional to 942,490.11, 1,413,199.59 and 643,332.81

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Solution

The fourth proportional to 942,490.11, 1,413,199.59 and 643,332.81 is: 964,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,490.11 : 1,413,199.59 = 643,332.81 : x
  2. Step 2: Convert to fraction form
    942,490.11/1,413,199.59 = 643,332.81/x
  3. Step 3: Cross multiply
    942,490.11x = 1,413,199.59 × 643,332.81
  4. Step 4: Simplify right side
    942,490.11x = 909,157,663,325.55
  5. Step 5: Solve for x
    x = 909,157,663,325.55/942,490.11
  6. Step 6: Final answer
    x = 964,633.64

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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.