Home / 727,903.40-1,091,855.10-626,426.60

Finding the Fourth Proportional to 727,903.40, 1,091,855.10 and 626,426.60

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Solution

The fourth proportional to 727,903.40, 1,091,855.10 and 626,426.60 is: 939,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,903.40 : 1,091,855.10 = 626,426.60 : x
  2. Step 2: Convert to fraction form
    727,903.40/1,091,855.10 = 626,426.60/x
  3. Step 3: Cross multiply
    727,903.40x = 1,091,855.10 × 626,426.60
  4. Step 4: Simplify right side
    727,903.40x = 683,967,077,985.66
  5. Step 5: Solve for x
    x = 683,967,077,985.66/727,903.40
  6. Step 6: Final answer
    x = 939,639.90

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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.