Home / 771,809.48-1,065,228.90-449,710.46

Finding the Fourth Proportional to 771,809.48, 1,065,228.90 and 449,710.46

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Solution

The fourth proportional to 771,809.48, 1,065,228.90 and 449,710.46 is: 620,677.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,809.48 : 1,065,228.90 = 449,710.46 : x
  2. Step 2: Convert to fraction form
    771,809.48/1,065,228.90 = 449,710.46/x
  3. Step 3: Cross multiply
    771,809.48x = 1,065,228.90 × 449,710.46
  4. Step 4: Simplify right side
    771,809.48x = 479,044,578,624.29
  5. Step 5: Solve for x
    x = 479,044,578,624.29/771,809.48
  6. Step 6: Final answer
    x = 620,677.24

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1.5x scale

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.