Home / 683,765.52-1,025,772.20-342,386.96

Finding the Fourth Proportional to 683,765.52, 1,025,772.20 and 342,386.96

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Solution

The fourth proportional to 683,765.52, 1,025,772.20 and 342,386.96 is: 513,642.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,765.52 : 1,025,772.20 = 342,386.96 : x
  2. Step 2: Convert to fraction form
    683,765.52/1,025,772.20 = 342,386.96/x
  3. Step 3: Cross multiply
    683,765.52x = 1,025,772.20 × 342,386.96
  4. Step 4: Simplify right side
    683,765.52x = 351,211,025,210.51
  5. Step 5: Solve for x
    x = 351,211,025,210.51/683,765.52
  6. Step 6: Final answer
    x = 513,642.49

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1.5x scale

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.