Home / 918,021.40-1,376,643.30-444,851.80

Finding the Fourth Proportional to 918,021.40, 1,376,643.30 and 444,851.80

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Solution

The fourth proportional to 918,021.40, 1,376,643.30 and 444,851.80 is: 667,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,021.40 : 1,376,643.30 = 444,851.80 : x
  2. Step 2: Convert to fraction form
    918,021.40/1,376,643.30 = 444,851.80/x
  3. Step 3: Cross multiply
    918,021.40x = 1,376,643.30 × 444,851.80
  4. Step 4: Simplify right side
    918,021.40x = 612,402,249,962.94
  5. Step 5: Solve for x
    x = 612,402,249,962.94/918,021.40
  6. Step 6: Final answer
    x = 667,089.30

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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.