Home / 747,356.48-1,031,373.88-407,846.64

Finding the Fourth Proportional to 747,356.48, 1,031,373.88 and 407,846.64

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Solution

The fourth proportional to 747,356.48, 1,031,373.88 and 407,846.64 is: 562,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,356.48 : 1,031,373.88 = 407,846.64 : x
  2. Step 2: Convert to fraction form
    747,356.48/1,031,373.88 = 407,846.64/x
  3. Step 3: Cross multiply
    747,356.48x = 1,031,373.88 × 407,846.64
  4. Step 4: Simplify right side
    747,356.48x = 420,642,371,541.76
  5. Step 5: Solve for x
    x = 420,642,371,541.76/747,356.48
  6. Step 6: Final answer
    x = 562,840.33

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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.