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Finding the Fourth Proportional to 556,931.50, 768,544.91 and 302,277.22

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Solution

The fourth proportional to 556,931.50, 768,544.91 and 302,277.22 is: 417,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,931.50 : 768,544.91 = 302,277.22 : x
  2. Step 2: Convert to fraction form
    556,931.50/768,544.91 = 302,277.22/x
  3. Step 3: Cross multiply
    556,931.50x = 768,544.91 × 302,277.22
  4. Step 4: Simplify right side
    556,931.50x = 232,313,616,540.74
  5. Step 5: Solve for x
    x = 232,313,616,540.74/556,931.50
  6. Step 6: Final answer
    x = 417,131.40

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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.