Home / 518,977.04-716,066.19-315,022.95

Finding the Fourth Proportional to 518,977.04, 716,066.19 and 315,022.95

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Solution

The fourth proportional to 518,977.04, 716,066.19 and 315,022.95 is: 434,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,977.04 : 716,066.19 = 315,022.95 : x
  2. Step 2: Convert to fraction form
    518,977.04/716,066.19 = 315,022.95/x
  3. Step 3: Cross multiply
    518,977.04x = 716,066.19 × 315,022.95
  4. Step 4: Simplify right side
    518,977.04x = 225,577,283,569.06
  5. Step 5: Solve for x
    x = 225,577,283,569.06/518,977.04
  6. Step 6: Final answer
    x = 434,657.54

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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.