Home / 872,881.68-1,309,280.40-304,239.81

Finding the Fourth Proportional to 872,881.68, 1,309,280.40 and 304,239.81

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Solution

The fourth proportional to 872,881.68, 1,309,280.40 and 304,239.81 is: 456,345.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,881.68 : 1,309,280.40 = 304,239.81 : x
  2. Step 2: Convert to fraction form
    872,881.68/1,309,280.40 = 304,239.81/x
  3. Step 3: Cross multiply
    872,881.68x = 1,309,280.40 × 304,239.81
  4. Step 4: Simplify right side
    872,881.68x = 398,335,220,132.72
  5. Step 5: Solve for x
    x = 398,335,220,132.72/872,881.68
  6. Step 6: Final answer
    x = 456,345.03

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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.