Home / 1,018,814.14-1,528,541.25-420,057.10

Finding the Fourth Proportional to 1,018,814.14, 1,528,541.25 and 420,057.10

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Solution

The fourth proportional to 1,018,814.14, 1,528,541.25 and 420,057.10 is: 630,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,814.14 : 1,528,541.25 = 420,057.10 : x
  2. Step 2: Convert to fraction form
    1,018,814.14/1,528,541.25 = 420,057.10/x
  3. Step 3: Cross multiply
    1,018,814.14x = 1,528,541.25 × 420,057.10
  4. Step 4: Simplify right side
    1,018,814.14x = 642,074,604,705.38
  5. Step 5: Solve for x
    x = 642,074,604,705.38/1,018,814.14
  6. Step 6: Final answer
    x = 630,217.60

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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.