Home / 1,395,439.47-2,091,830.60-448,145.89

Finding the Fourth Proportional to 1,395,439.47, 2,091,830.60 and 448,145.89

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Solution

The fourth proportional to 1,395,439.47, 2,091,830.60 and 448,145.89 is: 671,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,439.47 : 2,091,830.60 = 448,145.89 : x
  2. Step 2: Convert to fraction form
    1,395,439.47/2,091,830.60 = 448,145.89/x
  3. Step 3: Cross multiply
    1,395,439.47x = 2,091,830.60 × 448,145.89
  4. Step 4: Simplify right side
    1,395,439.47x = 937,445,285,966.23
  5. Step 5: Solve for x
    x = 937,445,285,966.23/1,395,439.47
  6. Step 6: Final answer
    x = 671,792.15

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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.