Home / 703,717.20-971,130.77-381,427.22

Finding the Fourth Proportional to 703,717.20, 971,130.77 and 381,427.22

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Solution

The fourth proportional to 703,717.20, 971,130.77 and 381,427.22 is: 526,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,717.20 : 971,130.77 = 381,427.22 : x
  2. Step 2: Convert to fraction form
    703,717.20/971,130.77 = 381,427.22/x
  3. Step 3: Cross multiply
    703,717.20x = 971,130.77 × 381,427.22
  4. Step 4: Simplify right side
    703,717.20x = 370,415,703,094.77
  5. Step 5: Solve for x
    x = 370,415,703,094.77/703,717.20
  6. Step 6: Final answer
    x = 526,370.11

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Double scale
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1.5x scale

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.