Home / 910,946.42-1,365,681.18-378,865.52

Finding the Fourth Proportional to 910,946.42, 1,365,681.18 and 378,865.52

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Solution

The fourth proportional to 910,946.42, 1,365,681.18 and 378,865.52 is: 567,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,946.42 : 1,365,681.18 = 378,865.52 : x
  2. Step 2: Convert to fraction form
    910,946.42/1,365,681.18 = 378,865.52/x
  3. Step 3: Cross multiply
    910,946.42x = 1,365,681.18 × 378,865.52
  4. Step 4: Simplify right side
    910,946.42x = 517,409,510,414.91
  5. Step 5: Solve for x
    x = 517,409,510,414.91/910,946.42
  6. Step 6: Final answer
    x = 567,991.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.