Home / 1,018,821.14-1,528,551.76-420,064.10

Finding the Fourth Proportional to 1,018,821.14, 1,528,551.76 and 420,064.10

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Solution

The fourth proportional to 1,018,821.14, 1,528,551.76 and 420,064.10 is: 630,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,821.14 : 1,528,551.76 = 420,064.10 : x
  2. Step 2: Convert to fraction form
    1,018,821.14/1,528,551.76 = 420,064.10/x
  3. Step 3: Cross multiply
    1,018,821.14x = 1,528,551.76 × 420,064.10
  4. Step 4: Simplify right side
    1,018,821.14x = 642,089,719,367.82
  5. Step 5: Solve for x
    x = 642,089,719,367.82/1,018,821.14
  6. Step 6: Final answer
    x = 630,228.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.