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Finding the Fourth Proportional to 556,920.32, 768,550.80 and 302,271.54

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Solution

The fourth proportional to 556,920.32, 768,550.80 and 302,271.54 is: 417,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,920.32 : 768,550.80 = 302,271.54 : x
  2. Step 2: Convert to fraction form
    556,920.32/768,550.80 = 302,271.54/x
  3. Step 3: Cross multiply
    556,920.32x = 768,550.80 × 302,271.54
  4. Step 4: Simplify right side
    556,920.32x = 232,311,033,884.23
  5. Step 5: Solve for x
    x = 232,311,033,884.23/556,920.32
  6. Step 6: Final answer
    x = 417,135.14

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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.