Home / 857,417.93-1,285,005.72-351,386.45

Finding the Fourth Proportional to 857,417.93, 1,285,005.72 and 351,386.45

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Solution

The fourth proportional to 857,417.93, 1,285,005.72 and 351,386.45 is: 526,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,417.93 : 1,285,005.72 = 351,386.45 : x
  2. Step 2: Convert to fraction form
    857,417.93/1,285,005.72 = 351,386.45/x
  3. Step 3: Cross multiply
    857,417.93x = 1,285,005.72 × 351,386.45
  4. Step 4: Simplify right side
    857,417.93x = 451,533,603,143.54
  5. Step 5: Solve for x
    x = 451,533,603,143.54/857,417.93
  6. Step 6: Final answer
    x = 526,620.20

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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.