Home / 988,810.40-1,483,458.60-278,829.20

Finding the Fourth Proportional to 988,810.40, 1,483,458.60 and 278,829.20

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Solution

The fourth proportional to 988,810.40, 1,483,458.60 and 278,829.20 is: 418,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,810.40 : 1,483,458.60 = 278,829.20 : x
  2. Step 2: Convert to fraction form
    988,810.40/1,483,458.60 = 278,829.20/x
  3. Step 3: Cross multiply
    988,810.40x = 1,483,458.60 × 278,829.20
  4. Step 4: Simplify right side
    988,810.40x = 413,631,574,671.12
  5. Step 5: Solve for x
    x = 413,631,574,671.12/988,810.40
  6. Step 6: Final answer
    x = 418,312.32

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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.