Home / 1,435,000.68-1,980,227.88-790,407

Finding the Fourth Proportional to 1,435,000.68, 1,980,227.88 and 790,407

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Solution

The fourth proportional to 1,435,000.68, 1,980,227.88 and 790,407 is: 1,090,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,000.68 : 1,980,227.88 = 790,407 : x
  2. Step 2: Convert to fraction form
    1,435,000.68/1,980,227.88 = 790,407/x
  3. Step 3: Cross multiply
    1,435,000.68x = 1,980,227.88 × 790,407
  4. Step 4: Simplify right side
    1,435,000.68x = 1,565,185,977,947.16
  5. Step 5: Solve for x
    x = 1,565,185,977,947.16/1,435,000.68
  6. Step 6: Final answer
    x = 1,090,721.42

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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.