Home / 857,247.30-1,284,970.81-288,430.93

Finding the Fourth Proportional to 857,247.30, 1,284,970.81 and 288,430.93

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Solution

The fourth proportional to 857,247.30, 1,284,970.81 and 288,430.93 is: 432,343.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,247.30 : 1,284,970.81 = 288,430.93 : x
  2. Step 2: Convert to fraction form
    857,247.30/1,284,970.81 = 288,430.93/x
  3. Step 3: Cross multiply
    857,247.30x = 1,284,970.81 × 288,430.93
  4. Step 4: Simplify right side
    857,247.30x = 370,625,320,760.35
  5. Step 5: Solve for x
    x = 370,625,320,760.35/857,247.30
  6. Step 6: Final answer
    x = 432,343.53

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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.