Home / 1,587,284.54-2,190,390.45-942,688.16

Finding the Fourth Proportional to 1,587,284.54, 2,190,390.45 and 942,688.16

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Solution

The fourth proportional to 1,587,284.54, 2,190,390.45 and 942,688.16 is: 1,300,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,284.54 : 2,190,390.45 = 942,688.16 : x
  2. Step 2: Convert to fraction form
    1,587,284.54/2,190,390.45 = 942,688.16/x
  3. Step 3: Cross multiply
    1,587,284.54x = 2,190,390.45 × 942,688.16
  4. Step 4: Simplify right side
    1,587,284.54x = 2,064,855,132,040.12
  5. Step 5: Solve for x
    x = 2,064,855,132,040.12/1,587,284.54
  6. Step 6: Final answer
    x = 1,300,872.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.