Home / 1,121,021.50-1,547,042.48-611,756.68

Finding the Fourth Proportional to 1,121,021.50, 1,547,042.48 and 611,756.68

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Solution

The fourth proportional to 1,121,021.50, 1,547,042.48 and 611,756.68 is: 844,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,021.50 : 1,547,042.48 = 611,756.68 : x
  2. Step 2: Convert to fraction form
    1,121,021.50/1,547,042.48 = 611,756.68/x
  3. Step 3: Cross multiply
    1,121,021.50x = 1,547,042.48 × 611,756.68
  4. Step 4: Simplify right side
    1,121,021.50x = 946,413,571,383.77
  5. Step 5: Solve for x
    x = 946,413,571,383.77/1,121,021.50
  6. Step 6: Final answer
    x = 844,242.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.