Home / 548,031.40-822,047.10-423,615.40

Finding the Fourth Proportional to 548,031.40, 822,047.10 and 423,615.40

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Solution

The fourth proportional to 548,031.40, 822,047.10 and 423,615.40 is: 635,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,031.40 : 822,047.10 = 423,615.40 : x
  2. Step 2: Convert to fraction form
    548,031.40/822,047.10 = 423,615.40/x
  3. Step 3: Cross multiply
    548,031.40x = 822,047.10 × 423,615.40
  4. Step 4: Simplify right side
    548,031.40x = 348,231,811,085.34
  5. Step 5: Solve for x
    x = 348,231,811,085.34/548,031.40
  6. Step 6: Final answer
    x = 635,423.10

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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.