Home / 1,312,667.20-1,969,000.80-993,802.60

Finding the Fourth Proportional to 1,312,667.20, 1,969,000.80 and 993,802.60

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Solution

The fourth proportional to 1,312,667.20, 1,969,000.80 and 993,802.60 is: 1,490,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,667.20 : 1,969,000.80 = 993,802.60 : x
  2. Step 2: Convert to fraction form
    1,312,667.20/1,969,000.80 = 993,802.60/x
  3. Step 3: Cross multiply
    1,312,667.20x = 1,969,000.80 × 993,802.60
  4. Step 4: Simplify right side
    1,312,667.20x = 1,956,798,114,442.08
  5. Step 5: Solve for x
    x = 1,956,798,114,442.08/1,312,667.20
  6. Step 6: Final answer
    x = 1,490,703.90

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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.