Home / 480,377.12-717,047.98-423,628.16

Finding the Fourth Proportional to 480,377.12, 717,047.98 and 423,628.16

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Solution

The fourth proportional to 480,377.12, 717,047.98 and 423,628.16 is: 632,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,377.12 : 717,047.98 = 423,628.16 : x
  2. Step 2: Convert to fraction form
    480,377.12/717,047.98 = 423,628.16/x
  3. Step 3: Cross multiply
    480,377.12x = 717,047.98 × 423,628.16
  4. Step 4: Simplify right side
    480,377.12x = 303,761,716,399.12
  5. Step 5: Solve for x
    x = 303,761,716,399.12/480,377.12
  6. Step 6: Final answer
    x = 632,340.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.