Home / 1,553,999.40-2,330,999.10-489,367.80

Finding the Fourth Proportional to 1,553,999.40, 2,330,999.10 and 489,367.80

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Solution

The fourth proportional to 1,553,999.40, 2,330,999.10 and 489,367.80 is: 734,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,999.40 : 2,330,999.10 = 489,367.80 : x
  2. Step 2: Convert to fraction form
    1,553,999.40/2,330,999.10 = 489,367.80/x
  3. Step 3: Cross multiply
    1,553,999.40x = 2,330,999.10 × 489,367.80
  4. Step 4: Simplify right side
    1,553,999.40x = 1,140,715,901,368.98
  5. Step 5: Solve for x
    x = 1,140,715,901,368.98/1,553,999.40
  6. Step 6: Final answer
    x = 734,051.70

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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.