Home / 1,158,603.03-1,598,966.87-642,518.55

Finding the Fourth Proportional to 1,158,603.03, 1,598,966.87 and 642,518.55

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Solution

The fourth proportional to 1,158,603.03, 1,598,966.87 and 642,518.55 is: 886,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,603.03 : 1,598,966.87 = 642,518.55 : x
  2. Step 2: Convert to fraction form
    1,158,603.03/1,598,966.87 = 642,518.55/x
  3. Step 3: Cross multiply
    1,158,603.03x = 1,598,966.87 × 642,518.55
  4. Step 4: Simplify right side
    1,158,603.03x = 1,027,365,871,597.85
  5. Step 5: Solve for x
    x = 1,027,365,871,597.85/1,158,603.03
  6. Step 6: Final answer
    x = 886,728.11

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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.