Home / 784,907.50-1,177,536.78-286,271.50

Finding the Fourth Proportional to 784,907.50, 1,177,536.78 and 286,271.50

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Solution

The fourth proportional to 784,907.50, 1,177,536.78 and 286,271.50 is: 429,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,907.50 : 1,177,536.78 = 286,271.50 : x
  2. Step 2: Convert to fraction form
    784,907.50/1,177,536.78 = 286,271.50/x
  3. Step 3: Cross multiply
    784,907.50x = 1,177,536.78 × 286,271.50
  4. Step 4: Simplify right side
    784,907.50x = 337,095,220,315.77
  5. Step 5: Solve for x
    x = 337,095,220,315.77/784,907.50
  6. Step 6: Final answer
    x = 429,471.27

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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.