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Finding the Fourth Proportional to 556,772.54, 768,348.08 and 302,123.72

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Solution

The fourth proportional to 556,772.54, 768,348.08 and 302,123.72 is: 416,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,772.54 : 768,348.08 = 302,123.72 : x
  2. Step 2: Convert to fraction form
    556,772.54/768,348.08 = 302,123.72/x
  3. Step 3: Cross multiply
    556,772.54x = 768,348.08 × 302,123.72
  4. Step 4: Simplify right side
    556,772.54x = 232,136,181,727.67
  5. Step 5: Solve for x
    x = 232,136,181,727.67/556,772.54
  6. Step 6: Final answer
    x = 416,931.81

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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.