Home / 747,298.72-1,031,263.68-407,772.64

Finding the Fourth Proportional to 747,298.72, 1,031,263.68 and 407,772.64

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Solution

The fourth proportional to 747,298.72, 1,031,263.68 and 407,772.64 is: 562,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,298.72 : 1,031,263.68 = 407,772.64 : x
  2. Step 2: Convert to fraction form
    747,298.72/1,031,263.68 = 407,772.64/x
  3. Step 3: Cross multiply
    747,298.72x = 1,031,263.68 × 407,772.64
  4. Step 4: Simplify right side
    747,298.72x = 420,521,113,329.72
  5. Step 5: Solve for x
    x = 420,521,113,329.72/747,298.72
  6. Step 6: Final answer
    x = 562,721.58

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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.