Home / 763,463.70-1,145,663.55-314,399.70

Finding the Fourth Proportional to 763,463.70, 1,145,663.55 and 314,399.70

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Solution

The fourth proportional to 763,463.70, 1,145,663.55 and 314,399.70 is: 471,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,463.70 : 1,145,663.55 = 314,399.70 : x
  2. Step 2: Convert to fraction form
    763,463.70/1,145,663.55 = 314,399.70/x
  3. Step 3: Cross multiply
    763,463.70x = 1,145,663.55 × 314,399.70
  4. Step 4: Simplify right side
    763,463.70x = 360,196,276,420.94
  5. Step 5: Solve for x
    x = 360,196,276,420.94/763,463.70
  6. Step 6: Final answer
    x = 471,792.28

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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.