Home / 436,031.40-654,047.10-380,735.40

Finding the Fourth Proportional to 436,031.40, 654,047.10 and 380,735.40

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Solution

The fourth proportional to 436,031.40, 654,047.10 and 380,735.40 is: 571,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,031.40 : 654,047.10 = 380,735.40 : x
  2. Step 2: Convert to fraction form
    436,031.40/654,047.10 = 380,735.40/x
  3. Step 3: Cross multiply
    436,031.40x = 654,047.10 × 380,735.40
  4. Step 4: Simplify right side
    436,031.40x = 249,018,884,237.34
  5. Step 5: Solve for x
    x = 249,018,884,237.34/436,031.40
  6. Step 6: Final answer
    x = 571,103.10

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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.