Home / 747,142.93-1,031,056.23-407,611.18

Finding the Fourth Proportional to 747,142.93, 1,031,056.23 and 407,611.18

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Solution

The fourth proportional to 747,142.93, 1,031,056.23 and 407,611.18 is: 562,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,142.93 : 1,031,056.23 = 407,611.18 : x
  2. Step 2: Convert to fraction form
    747,142.93/1,031,056.23 = 407,611.18/x
  3. Step 3: Cross multiply
    747,142.93x = 1,031,056.23 × 407,611.18
  4. Step 4: Simplify right side
    747,142.93x = 420,270,046,556.65
  5. Step 5: Solve for x
    x = 420,270,046,556.65/747,142.93
  6. Step 6: Final answer
    x = 562,502.88

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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.