Home / 740,260.08-1,021,562.01-400,728.33

Finding the Fourth Proportional to 740,260.08, 1,021,562.01 and 400,728.33

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Solution

The fourth proportional to 740,260.08, 1,021,562.01 and 400,728.33 is: 553,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,260.08 : 1,021,562.01 = 400,728.33 : x
  2. Step 2: Convert to fraction form
    740,260.08/1,021,562.01 = 400,728.33/x
  3. Step 3: Cross multiply
    740,260.08x = 1,021,562.01 × 400,728.33
  4. Step 4: Simplify right side
    740,260.08x = 409,368,838,258.74
  5. Step 5: Solve for x
    x = 409,368,838,258.74/740,260.08
  6. Step 6: Final answer
    x = 553,006.77

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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.