Home / 740,486.58-1,021,869.99-400,955.82

Finding the Fourth Proportional to 740,486.58, 1,021,869.99 and 400,955.82

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Solution

The fourth proportional to 740,486.58, 1,021,869.99 and 400,955.82 is: 553,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,486.58 : 1,021,869.99 = 400,955.82 : x
  2. Step 2: Convert to fraction form
    740,486.58/1,021,869.99 = 400,955.82/x
  3. Step 3: Cross multiply
    740,486.58x = 1,021,869.99 × 400,955.82
  4. Step 4: Simplify right side
    740,486.58x = 409,724,719,773.84
  5. Step 5: Solve for x
    x = 409,724,719,773.84/740,486.58
  6. Step 6: Final answer
    x = 553,318.22

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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.