Home / 740,568.15-1,021,978.13-401,036.40

Finding the Fourth Proportional to 740,568.15, 1,021,978.13 and 401,036.40

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Solution

The fourth proportional to 740,568.15, 1,021,978.13 and 401,036.40 is: 553,427.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,568.15 : 1,021,978.13 = 401,036.40 : x
  2. Step 2: Convert to fraction form
    740,568.15/1,021,978.13 = 401,036.40/x
  3. Step 3: Cross multiply
    740,568.15x = 1,021,978.13 × 401,036.40
  4. Step 4: Simplify right side
    740,568.15x = 409,850,428,128.75
  5. Step 5: Solve for x
    x = 409,850,428,128.75/740,568.15
  6. Step 6: Final answer
    x = 553,427.03

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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.