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Finding the Fourth Proportional to 513,535.80, 770,303.70 and 480,074.70

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Solution

The fourth proportional to 513,535.80, 770,303.70 and 480,074.70 is: 720,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,535.80 : 770,303.70 = 480,074.70 : x
  2. Step 2: Convert to fraction form
    513,535.80/770,303.70 = 480,074.70/x
  3. Step 3: Cross multiply
    513,535.80x = 770,303.70 × 480,074.70
  4. Step 4: Simplify right side
    513,535.80x = 369,803,317,686.39
  5. Step 5: Solve for x
    x = 369,803,317,686.39/513,535.80
  6. Step 6: Final answer
    x = 720,112.05

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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.