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Finding the Fourth Proportional to 480,131.88, 662,651.40 and 286,547.80

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Solution

The fourth proportional to 480,131.88, 662,651.40 and 286,547.80 is: 395,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,131.88 : 662,651.40 = 286,547.80 : x
  2. Step 2: Convert to fraction form
    480,131.88/662,651.40 = 286,547.80/x
  3. Step 3: Cross multiply
    480,131.88x = 662,651.40 × 286,547.80
  4. Step 4: Simplify right side
    480,131.88x = 189,881,300,836.92
  5. Step 5: Solve for x
    x = 189,881,300,836.92/480,131.88
  6. Step 6: Final answer
    x = 395,477.39

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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.