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Finding the Fourth Proportional to 556,907.18, 768,532.65 and 302,258.39

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Solution

The fourth proportional to 556,907.18, 768,532.65 and 302,258.39 is: 417,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,907.18 : 768,532.65 = 302,258.39 : x
  2. Step 2: Convert to fraction form
    556,907.18/768,532.65 = 302,258.39/x
  3. Step 3: Cross multiply
    556,907.18x = 768,532.65 × 302,258.39
  4. Step 4: Simplify right side
    556,907.18x = 232,295,441,451.43
  5. Step 5: Solve for x
    x = 232,295,441,451.43/556,907.18
  6. Step 6: Final answer
    x = 417,116.98

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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.