Home / 1,121,535.12-1,681,048.64-589,112.40

Finding the Fourth Proportional to 1,121,535.12, 1,681,048.64 and 589,112.40

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Solution

The fourth proportional to 1,121,535.12, 1,681,048.64 and 589,112.40 is: 883,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,535.12 : 1,681,048.64 = 589,112.40 : x
  2. Step 2: Convert to fraction form
    1,121,535.12/1,681,048.64 = 589,112.40/x
  3. Step 3: Cross multiply
    1,121,535.12x = 1,681,048.64 × 589,112.40
  4. Step 4: Simplify right side
    1,121,535.12x = 990,326,598,827.14
  5. Step 5: Solve for x
    x = 990,326,598,827.14/1,121,535.12
  6. Step 6: Final answer
    x = 883,009.89

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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.