Home / 1,756,127.80-2,634,191.70-426,431.80

Finding the Fourth Proportional to 1,756,127.80, 2,634,191.70 and 426,431.80

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Solution

The fourth proportional to 1,756,127.80, 2,634,191.70 and 426,431.80 is: 639,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756,127.80 : 2,634,191.70 = 426,431.80 : x
  2. Step 2: Convert to fraction form
    1,756,127.80/2,634,191.70 = 426,431.80/x
  3. Step 3: Cross multiply
    1,756,127.80x = 2,634,191.70 × 426,431.80
  4. Step 4: Simplify right side
    1,756,127.80x = 1,123,303,108,176.06
  5. Step 5: Solve for x
    x = 1,123,303,108,176.06/1,756,127.80
  6. Step 6: Final answer
    x = 639,647.70

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Double scale
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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.