Home / 859,048.40-1,288,852.86-409,710.90

Finding the Fourth Proportional to 859,048.40, 1,288,852.86 and 409,710.90

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Solution

The fourth proportional to 859,048.40, 1,288,852.86 and 409,710.90 is: 614,700.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,048.40 : 1,288,852.86 = 409,710.90 : x
  2. Step 2: Convert to fraction form
    859,048.40/1,288,852.86 = 409,710.90/x
  3. Step 3: Cross multiply
    859,048.40x = 1,288,852.86 × 409,710.90
  4. Step 4: Simplify right side
    859,048.40x = 528,057,065,238.17
  5. Step 5: Solve for x
    x = 528,057,065,238.17/859,048.40
  6. Step 6: Final answer
    x = 614,700.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.