Home / 1,060,931.71-1,590,815.98-420,586.75

Finding the Fourth Proportional to 1,060,931.71, 1,590,815.98 and 420,586.75

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Solution

The fourth proportional to 1,060,931.71, 1,590,815.98 and 420,586.75 is: 630,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060,931.71 : 1,590,815.98 = 420,586.75 : x
  2. Step 2: Convert to fraction form
    1,060,931.71/1,590,815.98 = 420,586.75/x
  3. Step 3: Cross multiply
    1,060,931.71x = 1,590,815.98 × 420,586.75
  4. Step 4: Simplify right side
    1,060,931.71x = 669,076,122,876.27
  5. Step 5: Solve for x
    x = 669,076,122,876.27/1,060,931.71
  6. Step 6: Final answer
    x = 630,649.57

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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.