Home / 1,124,319-1,683,776.17-643,087.88

Finding the Fourth Proportional to 1,124,319, 1,683,776.17 and 643,087.88

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Solution

The fourth proportional to 1,124,319, 1,683,776.17 and 643,087.88 is: 963,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,319 : 1,683,776.17 = 643,087.88 : x
  2. Step 2: Convert to fraction form
    1,124,319/1,683,776.17 = 643,087.88/x
  3. Step 3: Cross multiply
    1,124,319x = 1,683,776.17 × 643,087.88
  4. Step 4: Simplify right side
    1,124,319x = 1,082,816,047,559.82
  5. Step 5: Solve for x
    x = 1,082,816,047,559.82/1,124,319
  6. Step 6: Final answer
    x = 963,086.14

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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.