Home / 1,376,999.60-2,065,693.80-430,271.60

Finding the Fourth Proportional to 1,376,999.60, 2,065,693.80 and 430,271.60

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Solution

The fourth proportional to 1,376,999.60, 2,065,693.80 and 430,271.60 is: 645,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,999.60 : 2,065,693.80 = 430,271.60 : x
  2. Step 2: Convert to fraction form
    1,376,999.60/2,065,693.80 = 430,271.60/x
  3. Step 3: Cross multiply
    1,376,999.60x = 2,065,693.80 × 430,271.60
  4. Step 4: Simplify right side
    1,376,999.60x = 888,809,376,436.08
  5. Step 5: Solve for x
    x = 888,809,376,436.08/1,376,999.60
  6. Step 6: Final answer
    x = 645,468.14

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1.5x scale

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.