Home / 1,678,220.40-2,518,205.40-731,686.80

Finding the Fourth Proportional to 1,678,220.40, 2,518,205.40 and 731,686.80

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Solution

The fourth proportional to 1,678,220.40, 2,518,205.40 and 731,686.80 is: 1,097,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,220.40 : 2,518,205.40 = 731,686.80 : x
  2. Step 2: Convert to fraction form
    1,678,220.40/2,518,205.40 = 731,686.80/x
  3. Step 3: Cross multiply
    1,678,220.40x = 2,518,205.40 × 731,686.80
  4. Step 4: Simplify right side
    1,678,220.40x = 1,842,537,650,868.72
  5. Step 5: Solve for x
    x = 1,842,537,650,868.72/1,678,220.40
  6. Step 6: Final answer
    x = 1,097,911.60

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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.