Home / 747,143.22-1,031,054.18-407,611.47

Finding the Fourth Proportional to 747,143.22, 1,031,054.18 and 407,611.47

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Solution

The fourth proportional to 747,143.22, 1,031,054.18 and 407,611.47 is: 562,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,143.22 : 1,031,054.18 = 407,611.47 : x
  2. Step 2: Convert to fraction form
    747,143.22/1,031,054.18 = 407,611.47/x
  3. Step 3: Cross multiply
    747,143.22x = 1,031,054.18 × 407,611.47
  4. Step 4: Simplify right side
    747,143.22x = 420,269,507,921.39
  5. Step 5: Solve for x
    x = 420,269,507,921.39/747,143.22
  6. Step 6: Final answer
    x = 562,501.94

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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.