Home / 1,242,652.32-1,712,792.88-879,610.32

Finding the Fourth Proportional to 1,242,652.32, 1,712,792.88 and 879,610.32

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Solution

The fourth proportional to 1,242,652.32, 1,712,792.88 and 879,610.32 is: 1,212,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,652.32 : 1,712,792.88 = 879,610.32 : x
  2. Step 2: Convert to fraction form
    1,242,652.32/1,712,792.88 = 879,610.32/x
  3. Step 3: Cross multiply
    1,242,652.32x = 1,712,792.88 × 879,610.32
  4. Step 4: Simplify right side
    1,242,652.32x = 1,506,590,293,270.52
  5. Step 5: Solve for x
    x = 1,506,590,293,270.52/1,242,652.32
  6. Step 6: Final answer
    x = 1,212,398.89

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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.