Home / 770,011.60-1,153,267.80-486,576.40

Finding the Fourth Proportional to 770,011.60, 1,153,267.80 and 486,576.40

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Solution

The fourth proportional to 770,011.60, 1,153,267.80 and 486,576.40 is: 728,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,011.60 : 1,153,267.80 = 486,576.40 : x
  2. Step 2: Convert to fraction form
    770,011.60/1,153,267.80 = 486,576.40/x
  3. Step 3: Cross multiply
    770,011.60x = 1,153,267.80 × 486,576.40
  4. Step 4: Simplify right side
    770,011.60x = 561,152,894,359.92
  5. Step 5: Solve for x
    x = 561,152,894,359.92/770,011.60
  6. Step 6: Final answer
    x = 728,759.01

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1.5x scale

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.