Home / 1,069,287.60-1,603,931.40-998,428.80

Finding the Fourth Proportional to 1,069,287.60, 1,603,931.40 and 998,428.80

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Solution

The fourth proportional to 1,069,287.60, 1,603,931.40 and 998,428.80 is: 1,497,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,287.60 : 1,603,931.40 = 998,428.80 : x
  2. Step 2: Convert to fraction form
    1,069,287.60/1,603,931.40 = 998,428.80/x
  3. Step 3: Cross multiply
    1,069,287.60x = 1,603,931.40 × 998,428.80
  4. Step 4: Simplify right side
    1,069,287.60x = 1,601,411,302,984.32
  5. Step 5: Solve for x
    x = 1,601,411,302,984.32/1,069,287.60
  6. Step 6: Final answer
    x = 1,497,643.20

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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.