Home / 726,726.10-1,089,959.55-460,009.30

Finding the Fourth Proportional to 726,726.10, 1,089,959.55 and 460,009.30

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Solution

The fourth proportional to 726,726.10, 1,089,959.55 and 460,009.30 is: 689,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,726.10 : 1,089,959.55 = 460,009.30 : x
  2. Step 2: Convert to fraction form
    726,726.10/1,089,959.55 = 460,009.30/x
  3. Step 3: Cross multiply
    726,726.10x = 1,089,959.55 × 460,009.30
  4. Step 4: Simplify right side
    726,726.10x = 501,391,529,623.82
  5. Step 5: Solve for x
    x = 501,391,529,623.82/726,726.10
  6. Step 6: Final answer
    x = 689,931.91

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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.