Home / 745,890.54-1,029,058.94-487,914.74

Finding the Fourth Proportional to 745,890.54, 1,029,058.94 and 487,914.74

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Solution

The fourth proportional to 745,890.54, 1,029,058.94 and 487,914.74 is: 673,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,890.54 : 1,029,058.94 = 487,914.74 : x
  2. Step 2: Convert to fraction form
    745,890.54/1,029,058.94 = 487,914.74/x
  3. Step 3: Cross multiply
    745,890.54x = 1,029,058.94 × 487,914.74
  4. Step 4: Simplify right side
    745,890.54x = 502,093,025,154.78
  5. Step 5: Solve for x
    x = 502,093,025,154.78/745,890.54
  6. Step 6: Final answer
    x = 673,145.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.