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Finding the Fourth Proportional to 618,212.16, 853,061.76 and 346,242.24

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Solution

The fourth proportional to 618,212.16, 853,061.76 and 346,242.24 is: 477,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,212.16 : 853,061.76 = 346,242.24 : x
  2. Step 2: Convert to fraction form
    618,212.16/853,061.76 = 346,242.24/x
  3. Step 3: Cross multiply
    618,212.16x = 853,061.76 × 346,242.24
  4. Step 4: Simplify right side
    618,212.16x = 295,366,014,640.74
  5. Step 5: Solve for x
    x = 295,366,014,640.74/618,212.16
  6. Step 6: Final answer
    x = 477,774.51

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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.