Home / 1,989,347.80-2,982,053.40-977,641.60

Finding the Fourth Proportional to 1,989,347.80, 2,982,053.40 and 977,641.60

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Solution

The fourth proportional to 1,989,347.80, 2,982,053.40 and 977,641.60 is: 1,465,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,347.80 : 2,982,053.40 = 977,641.60 : x
  2. Step 2: Convert to fraction form
    1,989,347.80/2,982,053.40 = 977,641.60/x
  3. Step 3: Cross multiply
    1,989,347.80x = 2,982,053.40 × 977,641.60
  4. Step 4: Simplify right side
    1,989,347.80x = 2,915,379,457,261.44
  5. Step 5: Solve for x
    x = 2,915,379,457,261.44/1,989,347.80
  6. Step 6: Final answer
    x = 1,465,495.10

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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.