Home / 1,119,009.02-1,679,976.81-664,430.30

Finding the Fourth Proportional to 1,119,009.02, 1,679,976.81 and 664,430.30

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Solution

The fourth proportional to 1,119,009.02, 1,679,976.81 and 664,430.30 is: 997,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,009.02 : 1,679,976.81 = 664,430.30 : x
  2. Step 2: Convert to fraction form
    1,119,009.02/1,679,976.81 = 664,430.30/x
  3. Step 3: Cross multiply
    1,119,009.02x = 1,679,976.81 × 664,430.30
  4. Step 4: Simplify right side
    1,119,009.02x = 1,116,227,495,861.34
  5. Step 5: Solve for x
    x = 1,116,227,495,861.34/1,119,009.02
  6. Step 6: Final answer
    x = 997,514.30

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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.