Home / 1,189,528.02-1,641,550.26-645,663.92

Finding the Fourth Proportional to 1,189,528.02, 1,641,550.26 and 645,663.92

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Solution

The fourth proportional to 1,189,528.02, 1,641,550.26 and 645,663.92 is: 891,017.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,528.02 : 1,641,550.26 = 645,663.92 : x
  2. Step 2: Convert to fraction form
    1,189,528.02/1,641,550.26 = 645,663.92/x
  3. Step 3: Cross multiply
    1,189,528.02x = 1,641,550.26 × 645,663.92
  4. Step 4: Simplify right side
    1,189,528.02x = 1,059,889,775,748.62
  5. Step 5: Solve for x
    x = 1,059,889,775,748.62/1,189,528.02
  6. Step 6: Final answer
    x = 891,017.07

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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.