Home / 1,435,054.32-1,980,365.76-790,459.56

Finding the Fourth Proportional to 1,435,054.32, 1,980,365.76 and 790,459.56

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Solution

The fourth proportional to 1,435,054.32, 1,980,365.76 and 790,459.56 is: 1,090,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,054.32 : 1,980,365.76 = 790,459.56 : x
  2. Step 2: Convert to fraction form
    1,435,054.32/1,980,365.76 = 790,459.56/x
  3. Step 3: Cross multiply
    1,435,054.32x = 1,980,365.76 × 790,459.56
  4. Step 4: Simplify right side
    1,435,054.32x = 1,565,399,047,288.67
  5. Step 5: Solve for x
    x = 1,565,399,047,288.67/1,435,054.32
  6. Step 6: Final answer
    x = 1,090,829.12

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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.