Home / 570,844.02-787,765.08-312,730.35

Finding the Fourth Proportional to 570,844.02, 787,765.08 and 312,730.35

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Solution

The fourth proportional to 570,844.02, 787,765.08 and 312,730.35 is: 431,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,844.02 : 787,765.08 = 312,730.35 : x
  2. Step 2: Convert to fraction form
    570,844.02/787,765.08 = 312,730.35/x
  3. Step 3: Cross multiply
    570,844.02x = 787,765.08 × 312,730.35
  4. Step 4: Simplify right side
    570,844.02x = 246,358,049,186.18
  5. Step 5: Solve for x
    x = 246,358,049,186.18/570,844.02
  6. Step 6: Final answer
    x = 431,568.07

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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.