Home / 996,980.40-1,495,470.60-642,686.40

Finding the Fourth Proportional to 996,980.40, 1,495,470.60 and 642,686.40

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Solution

The fourth proportional to 996,980.40, 1,495,470.60 and 642,686.40 is: 964,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,980.40 : 1,495,470.60 = 642,686.40 : x
  2. Step 2: Convert to fraction form
    996,980.40/1,495,470.60 = 642,686.40/x
  3. Step 3: Cross multiply
    996,980.40x = 1,495,470.60 × 642,686.40
  4. Step 4: Simplify right side
    996,980.40x = 961,118,616,219.84
  5. Step 5: Solve for x
    x = 961,118,616,219.84/996,980.40
  6. Step 6: Final answer
    x = 964,029.60

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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.