Home / 747,299.61-1,031,298.35-407,786.49

Finding the Fourth Proportional to 747,299.61, 1,031,298.35 and 407,786.49

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Solution

The fourth proportional to 747,299.61, 1,031,298.35 and 407,786.49 is: 562,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,299.61 : 1,031,298.35 = 407,786.49 : x
  2. Step 2: Convert to fraction form
    747,299.61/1,031,298.35 = 407,786.49/x
  3. Step 3: Cross multiply
    747,299.61x = 1,031,298.35 × 407,786.49
  4. Step 4: Simplify right side
    747,299.61x = 420,549,532,250.36
  5. Step 5: Solve for x
    x = 420,549,532,250.36/747,299.61
  6. Step 6: Final answer
    x = 562,758.93

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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.