Home / 774,681.80-1,162,022.70-213,715.40

Finding the Fourth Proportional to 774,681.80, 1,162,022.70 and 213,715.40

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Solution

The fourth proportional to 774,681.80, 1,162,022.70 and 213,715.40 is: 320,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,681.80 : 1,162,022.70 = 213,715.40 : x
  2. Step 2: Convert to fraction form
    774,681.80/1,162,022.70 = 213,715.40/x
  3. Step 3: Cross multiply
    774,681.80x = 1,162,022.70 × 213,715.40
  4. Step 4: Simplify right side
    774,681.80x = 248,342,146,139.58
  5. Step 5: Solve for x
    x = 248,342,146,139.58/774,681.80
  6. Step 6: Final answer
    x = 320,573.10

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Similar ratio
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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.