Home / 1,321,430.32-1,823,934-777,740.50

Finding the Fourth Proportional to 1,321,430.32, 1,823,934 and 777,740.50

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Solution

The fourth proportional to 1,321,430.32, 1,823,934 and 777,740.50 is: 1,073,493.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,430.32 : 1,823,934 = 777,740.50 : x
  2. Step 2: Convert to fraction form
    1,321,430.32/1,823,934 = 777,740.50/x
  3. Step 3: Cross multiply
    1,321,430.32x = 1,823,934 × 777,740.50
  4. Step 4: Simplify right side
    1,321,430.32x = 1,418,547,341,127
  5. Step 5: Solve for x
    x = 1,418,547,341,127/1,321,430.32
  6. Step 6: Final answer
    x = 1,073,493.86

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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.