Home / 1,018,321.05-1,405,283.59-559,465.16

Finding the Fourth Proportional to 1,018,321.05, 1,405,283.59 and 559,465.16

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Solution

The fourth proportional to 1,018,321.05, 1,405,283.59 and 559,465.16 is: 772,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,321.05 : 1,405,283.59 = 559,465.16 : x
  2. Step 2: Convert to fraction form
    1,018,321.05/1,405,283.59 = 559,465.16/x
  3. Step 3: Cross multiply
    1,018,321.05x = 1,405,283.59 × 559,465.16
  4. Step 4: Simplify right side
    1,018,321.05x = 786,207,201,708.32
  5. Step 5: Solve for x
    x = 786,207,201,708.32/1,018,321.05
  6. Step 6: Final answer
    x = 772,062.21

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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.