Home / 1,435,056.32-1,980,368.52-790,461.56

Finding the Fourth Proportional to 1,435,056.32, 1,980,368.52 and 790,461.56

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Solution

The fourth proportional to 1,435,056.32, 1,980,368.52 and 790,461.56 is: 1,090,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,056.32 : 1,980,368.52 = 790,461.56 : x
  2. Step 2: Convert to fraction form
    1,435,056.32/1,980,368.52 = 790,461.56/x
  3. Step 3: Cross multiply
    1,435,056.32x = 1,980,368.52 × 790,461.56
  4. Step 4: Simplify right side
    1,435,056.32x = 1,565,405,189,694.09
  5. Step 5: Solve for x
    x = 1,565,405,189,694.09/1,435,056.32
  6. Step 6: Final answer
    x = 1,090,831.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.