Home / 1,098,485.40-1,648,700.10-648,643.80

Finding the Fourth Proportional to 1,098,485.40, 1,648,700.10 and 648,643.80

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Solution

The fourth proportional to 1,098,485.40, 1,648,700.10 and 648,643.80 is: 973,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,485.40 : 1,648,700.10 = 648,643.80 : x
  2. Step 2: Convert to fraction form
    1,098,485.40/1,648,700.10 = 648,643.80/x
  3. Step 3: Cross multiply
    1,098,485.40x = 1,648,700.10 × 648,643.80
  4. Step 4: Simplify right side
    1,098,485.40x = 1,069,419,097,924.38
  5. Step 5: Solve for x
    x = 1,069,419,097,924.38/1,098,485.40
  6. Step 6: Final answer
    x = 973,539.66

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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.