Home / 774,685.95-1,162,095.86-213,720.45

Finding the Fourth Proportional to 774,685.95, 1,162,095.86 and 213,720.45

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Solution

The fourth proportional to 774,685.95, 1,162,095.86 and 213,720.45 is: 320,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,685.95 : 1,162,095.86 = 213,720.45 : x
  2. Step 2: Convert to fraction form
    774,685.95/1,162,095.86 = 213,720.45/x
  3. Step 3: Cross multiply
    774,685.95x = 1,162,095.86 × 213,720.45
  4. Step 4: Simplify right side
    774,685.95x = 248,363,650,676.64
  5. Step 5: Solve for x
    x = 248,363,650,676.64/774,685.95
  6. Step 6: Final answer
    x = 320,599.14

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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.