Home / 989,355.60-1,484,033.40-646,871.40

Finding the Fourth Proportional to 989,355.60, 1,484,033.40 and 646,871.40

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Solution

The fourth proportional to 989,355.60, 1,484,033.40 and 646,871.40 is: 970,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,355.60 : 1,484,033.40 = 646,871.40 : x
  2. Step 2: Convert to fraction form
    989,355.60/1,484,033.40 = 646,871.40/x
  3. Step 3: Cross multiply
    989,355.60x = 1,484,033.40 × 646,871.40
  4. Step 4: Simplify right side
    989,355.60x = 959,978,763,104.76
  5. Step 5: Solve for x
    x = 959,978,763,104.76/989,355.60
  6. Step 6: Final answer
    x = 970,307.10

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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.