Home / 739,916.51-1,021,087.49-400,384.76

Finding the Fourth Proportional to 739,916.51, 1,021,087.49 and 400,384.76

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Solution

The fourth proportional to 739,916.51, 1,021,087.49 and 400,384.76 is: 552,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,916.51 : 1,021,087.49 = 400,384.76 : x
  2. Step 2: Convert to fraction form
    739,916.51/1,021,087.49 = 400,384.76/x
  3. Step 3: Cross multiply
    739,916.51x = 1,021,087.49 × 400,384.76
  4. Step 4: Simplify right side
    739,916.51x = 408,827,862,515.29
  5. Step 5: Solve for x
    x = 408,827,862,515.29/739,916.51
  6. Step 6: Final answer
    x = 552,532.43

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Double scale
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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.