Home / 1,119,005.52-1,679,971.56-664,426.80

Finding the Fourth Proportional to 1,119,005.52, 1,679,971.56 and 664,426.80

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Solution

The fourth proportional to 1,119,005.52, 1,679,971.56 and 664,426.80 is: 997,509.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,005.52 : 1,679,971.56 = 664,426.80 : x
  2. Step 2: Convert to fraction form
    1,119,005.52/1,679,971.56 = 664,426.80/x
  3. Step 3: Cross multiply
    1,119,005.52x = 1,679,971.56 × 664,426.80
  4. Step 4: Simplify right side
    1,119,005.52x = 1,116,218,127,701.81
  5. Step 5: Solve for x
    x = 1,116,218,127,701.81/1,119,005.52
  6. Step 6: Final answer
    x = 997,509.05

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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.