Home / 1,319,069.60-1,980,937.20-1,020,276.80

Finding the Fourth Proportional to 1,319,069.60, 1,980,937.20 and 1,020,276.80

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Solution

The fourth proportional to 1,319,069.60, 1,980,937.20 and 1,020,276.80 is: 1,532,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,069.60 : 1,980,937.20 = 1,020,276.80 : x
  2. Step 2: Convert to fraction form
    1,319,069.60/1,980,937.20 = 1,020,276.80/x
  3. Step 3: Cross multiply
    1,319,069.60x = 1,980,937.20 × 1,020,276.80
  4. Step 4: Simplify right side
    1,319,069.60x = 2,021,104,267,416.96
  5. Step 5: Solve for x
    x = 2,021,104,267,416.96/1,319,069.60
  6. Step 6: Final answer
    x = 1,532,219.58

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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.