Home / 1,989,128.34-2,984,574.60-1,042,273.98

Finding the Fourth Proportional to 1,989,128.34, 2,984,574.60 and 1,042,273.98

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Solution

The fourth proportional to 1,989,128.34, 2,984,574.60 and 1,042,273.98 is: 1,563,873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,128.34 : 2,984,574.60 = 1,042,273.98 : x
  2. Step 2: Convert to fraction form
    1,989,128.34/2,984,574.60 = 1,042,273.98/x
  3. Step 3: Cross multiply
    1,989,128.34x = 2,984,574.60 × 1,042,273.98
  4. Step 4: Simplify right side
    1,989,128.34x = 3,110,744,446,948.91
  5. Step 5: Solve for x
    x = 3,110,744,446,948.91/1,989,128.34
  6. Step 6: Final answer
    x = 1,563,873.17

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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.