Home / 747,756.37-1,031,864.75-408,159.01

Finding the Fourth Proportional to 747,756.37, 1,031,864.75 and 408,159.01

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Solution

The fourth proportional to 747,756.37, 1,031,864.75 and 408,159.01 is: 563,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,756.37 : 1,031,864.75 = 408,159.01 : x
  2. Step 2: Convert to fraction form
    747,756.37/1,031,864.75 = 408,159.01/x
  3. Step 3: Cross multiply
    747,756.37x = 1,031,864.75 × 408,159.01
  4. Step 4: Simplify right side
    747,756.37x = 421,164,889,654.57
  5. Step 5: Solve for x
    x = 421,164,889,654.57/747,756.37
  6. Step 6: Final answer
    x = 563,238.12

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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.