Home / 740,262.26-1,021,565.18-400,730.51

Finding the Fourth Proportional to 740,262.26, 1,021,565.18 and 400,730.51

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Solution

The fourth proportional to 740,262.26, 1,021,565.18 and 400,730.51 is: 553,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,262.26 : 1,021,565.18 = 400,730.51 : x
  2. Step 2: Convert to fraction form
    740,262.26/1,021,565.18 = 400,730.51/x
  3. Step 3: Cross multiply
    740,262.26x = 1,021,565.18 × 400,730.51
  4. Step 4: Simplify right side
    740,262.26x = 409,372,339,135.38
  5. Step 5: Solve for x
    x = 409,372,339,135.38/740,262.26
  6. Step 6: Final answer
    x = 553,009.87

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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.