Home / 889,373.98-1,334,188.95-290,186.74

Finding the Fourth Proportional to 889,373.98, 1,334,188.95 and 290,186.74

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Solution

The fourth proportional to 889,373.98, 1,334,188.95 and 290,186.74 is: 435,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,373.98 : 1,334,188.95 = 290,186.74 : x
  2. Step 2: Convert to fraction form
    889,373.98/1,334,188.95 = 290,186.74/x
  3. Step 3: Cross multiply
    889,373.98x = 1,334,188.95 × 290,186.74
  4. Step 4: Simplify right side
    889,373.98x = 387,163,941,944.52
  5. Step 5: Solve for x
    x = 387,163,941,944.52/889,373.98
  6. Step 6: Final answer
    x = 435,321.87

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Double scale
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Similar ratio
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1.5x scale

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.