Home / 1,051,625.70-1,574,328.15-990,108.90

Finding the Fourth Proportional to 1,051,625.70, 1,574,328.15 and 990,108.90

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Solution

The fourth proportional to 1,051,625.70, 1,574,328.15 and 990,108.90 is: 1,482,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,625.70 : 1,574,328.15 = 990,108.90 : x
  2. Step 2: Convert to fraction form
    1,051,625.70/1,574,328.15 = 990,108.90/x
  3. Step 3: Cross multiply
    1,051,625.70x = 1,574,328.15 × 990,108.90
  4. Step 4: Simplify right side
    1,051,625.70x = 1,558,756,312,835.54
  5. Step 5: Solve for x
    x = 1,558,756,312,835.54/1,051,625.70
  6. Step 6: Final answer
    x = 1,482,234.90

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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.