Home / 740,060.64-1,021,283.69-400,528.89

Finding the Fourth Proportional to 740,060.64, 1,021,283.69 and 400,528.89

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Solution

The fourth proportional to 740,060.64, 1,021,283.69 and 400,528.89 is: 552,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,060.64 : 1,021,283.69 = 400,528.89 : x
  2. Step 2: Convert to fraction form
    740,060.64/1,021,283.69 = 400,528.89/x
  3. Step 3: Cross multiply
    740,060.64x = 1,021,283.69 × 400,528.89
  4. Step 4: Simplify right side
    740,060.64x = 409,053,620,728.16
  5. Step 5: Solve for x
    x = 409,053,620,728.16/740,060.64
  6. Step 6: Final answer
    x = 552,729.87

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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.