Home / 1,124,320-1,683,777.67-643,088.88

Finding the Fourth Proportional to 1,124,320, 1,683,777.67 and 643,088.88

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Solution

The fourth proportional to 1,124,320, 1,683,777.67 and 643,088.88 is: 963,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,320 : 1,683,777.67 = 643,088.88 : x
  2. Step 2: Convert to fraction form
    1,124,320/1,683,777.67 = 643,088.88/x
  3. Step 3: Cross multiply
    1,124,320x = 1,683,777.67 × 643,088.88
  4. Step 4: Simplify right side
    1,124,320x = 1,082,818,695,969.31
  5. Step 5: Solve for x
    x = 1,082,818,695,969.31/1,124,320
  6. Step 6: Final answer
    x = 963,087.64

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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.