Home / 743,386.80-1,025,823.24-403,847.76

Finding the Fourth Proportional to 743,386.80, 1,025,823.24 and 403,847.76

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Solution

The fourth proportional to 743,386.80, 1,025,823.24 and 403,847.76 is: 557,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,386.80 : 1,025,823.24 = 403,847.76 : x
  2. Step 2: Convert to fraction form
    743,386.80/1,025,823.24 = 403,847.76/x
  3. Step 3: Cross multiply
    743,386.80x = 1,025,823.24 × 403,847.76
  4. Step 4: Simplify right side
    743,386.80x = 414,276,417,629.94
  5. Step 5: Solve for x
    x = 414,276,417,629.94/743,386.80
  6. Step 6: Final answer
    x = 557,282.45

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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.