Home / 867,727.59-1,302,431.01-418,764.51

Finding the Fourth Proportional to 867,727.59, 1,302,431.01 and 418,764.51

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Solution

The fourth proportional to 867,727.59, 1,302,431.01 and 418,764.51 is: 628,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,727.59 : 1,302,431.01 = 418,764.51 : x
  2. Step 2: Convert to fraction form
    867,727.59/1,302,431.01 = 418,764.51/x
  3. Step 3: Cross multiply
    867,727.59x = 1,302,431.01 × 418,764.51
  4. Step 4: Simplify right side
    867,727.59x = 545,411,883,711.46
  5. Step 5: Solve for x
    x = 545,411,883,711.46/867,727.59
  6. Step 6: Final answer
    x = 628,551.97

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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.