Home / 765,028.80-1,145,210.40-448,545.60

Finding the Fourth Proportional to 765,028.80, 1,145,210.40 and 448,545.60

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Solution

The fourth proportional to 765,028.80, 1,145,210.40 and 448,545.60 is: 671,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,028.80 : 1,145,210.40 = 448,545.60 : x
  2. Step 2: Convert to fraction form
    765,028.80/1,145,210.40 = 448,545.60/x
  3. Step 3: Cross multiply
    765,028.80x = 1,145,210.40 × 448,545.60
  4. Step 4: Simplify right side
    765,028.80x = 513,679,085,994.24
  5. Step 5: Solve for x
    x = 513,679,085,994.24/765,028.80
  6. Step 6: Final answer
    x = 671,450.65

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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.