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Finding the Fourth Proportional to 688,668.48, 950,349.51 and 382,741.20

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Solution

The fourth proportional to 688,668.48, 950,349.51 and 382,741.20 is: 528,175.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,668.48 : 950,349.51 = 382,741.20 : x
  2. Step 2: Convert to fraction form
    688,668.48/950,349.51 = 382,741.20/x
  3. Step 3: Cross multiply
    688,668.48x = 950,349.51 × 382,741.20
  4. Step 4: Simplify right side
    688,668.48x = 363,737,911,876.81
  5. Step 5: Solve for x
    x = 363,737,911,876.81/688,668.48
  6. Step 6: Final answer
    x = 528,175.64

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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.