Home / 1,421,460-2,132,559.36-424,188

Finding the Fourth Proportional to 1,421,460, 2,132,559.36 and 424,188

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Solution

The fourth proportional to 1,421,460, 2,132,559.36 and 424,188 is: 636,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,460 : 2,132,559.36 = 424,188 : x
  2. Step 2: Convert to fraction form
    1,421,460/2,132,559.36 = 424,188/x
  3. Step 3: Cross multiply
    1,421,460x = 2,132,559.36 × 424,188
  4. Step 4: Simplify right side
    1,421,460x = 904,606,089,799.68
  5. Step 5: Solve for x
    x = 904,606,089,799.68/1,421,460
  6. Step 6: Final answer
    x = 636,392.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.