Home / 1,018,814.64-1,528,542-420,057.60

Finding the Fourth Proportional to 1,018,814.64, 1,528,542 and 420,057.60

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Solution

The fourth proportional to 1,018,814.64, 1,528,542 and 420,057.60 is: 630,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,814.64 : 1,528,542 = 420,057.60 : x
  2. Step 2: Convert to fraction form
    1,018,814.64/1,528,542 = 420,057.60/x
  3. Step 3: Cross multiply
    1,018,814.64x = 1,528,542 × 420,057.60
  4. Step 4: Simplify right side
    1,018,814.64x = 642,075,684,019.20
  5. Step 5: Solve for x
    x = 642,075,684,019.20/1,018,814.64
  6. Step 6: Final answer
    x = 630,218.35

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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.