Home / 489,159.05-675,136.29-317,290.01

Finding the Fourth Proportional to 489,159.05, 675,136.29 and 317,290.01

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Solution

The fourth proportional to 489,159.05, 675,136.29 and 317,290.01 is: 437,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,159.05 : 675,136.29 = 317,290.01 : x
  2. Step 2: Convert to fraction form
    489,159.05/675,136.29 = 317,290.01/x
  3. Step 3: Cross multiply
    489,159.05x = 675,136.29 × 317,290.01
  4. Step 4: Simplify right side
    489,159.05x = 214,213,996,829.78
  5. Step 5: Solve for x
    x = 214,213,996,829.78/489,159.05
  6. Step 6: Final answer
    x = 437,923.00

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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.