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Finding the Fourth Proportional to 620,052.47, 855,606.13 and 348,150.25

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Solution

The fourth proportional to 620,052.47, 855,606.13 and 348,150.25 is: 480,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,052.47 : 855,606.13 = 348,150.25 : x
  2. Step 2: Convert to fraction form
    620,052.47/855,606.13 = 348,150.25/x
  3. Step 3: Cross multiply
    620,052.47x = 855,606.13 × 348,150.25
  4. Step 4: Simplify right side
    620,052.47x = 297,879,488,061.03
  5. Step 5: Solve for x
    x = 297,879,488,061.03/620,052.47
  6. Step 6: Final answer
    x = 480,410.13

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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.