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Finding the Fourth Proportional to 556,875.81, 768,468.06 and 302,221.53

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Solution

The fourth proportional to 556,875.81, 768,468.06 and 302,221.53 is: 417,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,875.81 : 768,468.06 = 302,221.53 : x
  2. Step 2: Convert to fraction form
    556,875.81/768,468.06 = 302,221.53/x
  3. Step 3: Cross multiply
    556,875.81x = 768,468.06 × 302,221.53
  4. Step 4: Simplify right side
    556,875.81x = 232,247,592,849.33
  5. Step 5: Solve for x
    x = 232,247,592,849.33/556,875.81
  6. Step 6: Final answer
    x = 417,054.55

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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.