Home / 1,990,497.80-2,985,746.70-570,470.60

Finding the Fourth Proportional to 1,990,497.80, 2,985,746.70 and 570,470.60

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Solution

The fourth proportional to 1,990,497.80, 2,985,746.70 and 570,470.60 is: 855,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,497.80 : 2,985,746.70 = 570,470.60 : x
  2. Step 2: Convert to fraction form
    1,990,497.80/2,985,746.70 = 570,470.60/x
  3. Step 3: Cross multiply
    1,990,497.80x = 2,985,746.70 × 570,470.60
  4. Step 4: Simplify right side
    1,990,497.80x = 1,703,280,711,397.02
  5. Step 5: Solve for x
    x = 1,703,280,711,397.02/1,990,497.80
  6. Step 6: Final answer
    x = 855,705.90

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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.