Home / 1,019,403.23-1,529,289.21-420,030.97

Finding the Fourth Proportional to 1,019,403.23, 1,529,289.21 and 420,030.97

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Solution

The fourth proportional to 1,019,403.23, 1,529,289.21 and 420,030.97 is: 630,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,403.23 : 1,529,289.21 = 420,030.97 : x
  2. Step 2: Convert to fraction form
    1,019,403.23/1,529,289.21 = 420,030.97/x
  3. Step 3: Cross multiply
    1,019,403.23x = 1,529,289.21 × 420,030.97
  4. Step 4: Simplify right side
    1,019,403.23x = 642,348,828,038.73
  5. Step 5: Solve for x
    x = 642,348,828,038.73/1,019,403.23
  6. Step 6: Final answer
    x = 630,122.42

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1.5x scale

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.