Home / 1,989,491.40-2,984,237.10-659,795.40

Finding the Fourth Proportional to 1,989,491.40, 2,984,237.10 and 659,795.40

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Solution

The fourth proportional to 1,989,491.40, 2,984,237.10 and 659,795.40 is: 989,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,491.40 : 2,984,237.10 = 659,795.40 : x
  2. Step 2: Convert to fraction form
    1,989,491.40/2,984,237.10 = 659,795.40/x
  3. Step 3: Cross multiply
    1,989,491.40x = 2,984,237.10 × 659,795.40
  4. Step 4: Simplify right side
    1,989,491.40x = 1,968,985,911,089.34
  5. Step 5: Solve for x
    x = 1,968,985,911,089.34/1,989,491.40
  6. Step 6: Final answer
    x = 989,693.10

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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.