Home / 853,305.93-1,280,048.85-284,488.76

Finding the Fourth Proportional to 853,305.93, 1,280,048.85 and 284,488.76

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Solution

The fourth proportional to 853,305.93, 1,280,048.85 and 284,488.76 is: 426,763.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,305.93 : 1,280,048.85 = 284,488.76 : x
  2. Step 2: Convert to fraction form
    853,305.93/1,280,048.85 = 284,488.76/x
  3. Step 3: Cross multiply
    853,305.93x = 1,280,048.85 × 284,488.76
  4. Step 4: Simplify right side
    853,305.93x = 364,159,510,075.93
  5. Step 5: Solve for x
    x = 364,159,510,075.93/853,305.93
  6. Step 6: Final answer
    x = 426,763.13

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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.