Home / 947,728.54-1,307,862.21-518,008.42

Finding the Fourth Proportional to 947,728.54, 1,307,862.21 and 518,008.42

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Solution

The fourth proportional to 947,728.54, 1,307,862.21 and 518,008.42 is: 714,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,728.54 : 1,307,862.21 = 518,008.42 : x
  2. Step 2: Convert to fraction form
    947,728.54/1,307,862.21 = 518,008.42/x
  3. Step 3: Cross multiply
    947,728.54x = 1,307,862.21 × 518,008.42
  4. Step 4: Simplify right side
    947,728.54x = 677,483,636,979.81
  5. Step 5: Solve for x
    x = 677,483,636,979.81/947,728.54
  6. Step 6: Final answer
    x = 714,849.88

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1.5x scale

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.