Home / 1,051,023.72-1,449,952.02-643,145.16

Finding the Fourth Proportional to 1,051,023.72, 1,449,952.02 and 643,145.16

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Solution

The fourth proportional to 1,051,023.72, 1,449,952.02 and 643,145.16 is: 887,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,023.72 : 1,449,952.02 = 643,145.16 : x
  2. Step 2: Convert to fraction form
    1,051,023.72/1,449,952.02 = 643,145.16/x
  3. Step 3: Cross multiply
    1,051,023.72x = 1,449,952.02 × 643,145.16
  4. Step 4: Simplify right side
    1,051,023.72x = 932,529,623,895.22
  5. Step 5: Solve for x
    x = 932,529,623,895.22/1,051,023.72
  6. Step 6: Final answer
    x = 887,258.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.