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Finding the Fourth Proportional to 510,189.54, 705,032.58 and 382,643.70

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Solution

The fourth proportional to 510,189.54, 705,032.58 and 382,643.70 is: 528,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,189.54 : 705,032.58 = 382,643.70 : x
  2. Step 2: Convert to fraction form
    510,189.54/705,032.58 = 382,643.70/x
  3. Step 3: Cross multiply
    510,189.54x = 705,032.58 × 382,643.70
  4. Step 4: Simplify right side
    510,189.54x = 269,776,275,031.75
  5. Step 5: Solve for x
    x = 269,776,275,031.75/510,189.54
  6. Step 6: Final answer
    x = 528,776.57

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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.