Home / 942,720.63-1,300,981.85-513,028.47

Finding the Fourth Proportional to 942,720.63, 1,300,981.85 and 513,028.47

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Solution

The fourth proportional to 942,720.63, 1,300,981.85 and 513,028.47 is: 707,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,720.63 : 1,300,981.85 = 513,028.47 : x
  2. Step 2: Convert to fraction form
    942,720.63/1,300,981.85 = 513,028.47/x
  3. Step 3: Cross multiply
    942,720.63x = 1,300,981.85 × 513,028.47
  4. Step 4: Simplify right side
    942,720.63x = 667,440,725,438.13
  5. Step 5: Solve for x
    x = 667,440,725,438.13/942,720.63
  6. Step 6: Final answer
    x = 707,994.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.