Home / 1,018,215-1,405,165.86-565,535.16

Finding the Fourth Proportional to 1,018,215, 1,405,165.86 and 565,535.16

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Solution

The fourth proportional to 1,018,215, 1,405,165.86 and 565,535.16 is: 780,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,215 : 1,405,165.86 = 565,535.16 : x
  2. Step 2: Convert to fraction form
    1,018,215/1,405,165.86 = 565,535.16/x
  3. Step 3: Cross multiply
    1,018,215x = 1,405,165.86 × 565,535.16
  4. Step 4: Simplify right side
    1,018,215x = 794,670,699,461.64
  5. Step 5: Solve for x
    x = 794,670,699,461.64/1,018,215
  6. Step 6: Final answer
    x = 780,454.72

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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.