Home / 740,282.49-1,021,593.15-400,750.74

Finding the Fourth Proportional to 740,282.49, 1,021,593.15 and 400,750.74

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Solution

The fourth proportional to 740,282.49, 1,021,593.15 and 400,750.74 is: 553,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,282.49 : 1,021,593.15 = 400,750.74 : x
  2. Step 2: Convert to fraction form
    740,282.49/1,021,593.15 = 400,750.74/x
  3. Step 3: Cross multiply
    740,282.49x = 1,021,593.15 × 400,750.74
  4. Step 4: Simplify right side
    740,282.49x = 409,404,210,841.43
  5. Step 5: Solve for x
    x = 409,404,210,841.43/740,282.49
  6. Step 6: Final answer
    x = 553,037.82

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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.