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Finding the Fourth Proportional to 710,594.75, 980,579.43 and 388,307.49

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Solution

The fourth proportional to 710,594.75, 980,579.43 and 388,307.49 is: 535,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,594.75 : 980,579.43 = 388,307.49 : x
  2. Step 2: Convert to fraction form
    710,594.75/980,579.43 = 388,307.49/x
  3. Step 3: Cross multiply
    710,594.75x = 980,579.43 × 388,307.49
  4. Step 4: Simplify right side
    710,594.75x = 380,766,337,208.93
  5. Step 5: Solve for x
    x = 380,766,337,208.93/710,594.75
  6. Step 6: Final answer
    x = 535,841.76

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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.