Home / 745,881.46-1,029,046.41-487,905.67

Finding the Fourth Proportional to 745,881.46, 1,029,046.41 and 487,905.67

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Solution

The fourth proportional to 745,881.46, 1,029,046.41 and 487,905.67 is: 673,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,881.46 : 1,029,046.41 = 487,905.67 : x
  2. Step 2: Convert to fraction form
    745,881.46/1,029,046.41 = 487,905.67/x
  3. Step 3: Cross multiply
    745,881.46x = 1,029,046.41 × 487,905.67
  4. Step 4: Simplify right side
    745,881.46x = 502,077,578,132.15
  5. Step 5: Solve for x
    x = 502,077,578,132.15/745,881.46
  6. Step 6: Final answer
    x = 673,133.21

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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.