Home / 920,943.54-1,381,602.15-289,710.54

Finding the Fourth Proportional to 920,943.54, 1,381,602.15 and 289,710.54

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Solution

The fourth proportional to 920,943.54, 1,381,602.15 and 289,710.54 is: 434,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,943.54 : 1,381,602.15 = 289,710.54 : x
  2. Step 2: Convert to fraction form
    920,943.54/1,381,602.15 = 289,710.54/x
  3. Step 3: Cross multiply
    920,943.54x = 1,381,602.15 × 289,710.54
  4. Step 4: Simplify right side
    920,943.54x = 400,264,704,941.66
  5. Step 5: Solve for x
    x = 400,264,704,941.66/920,943.54
  6. Step 6: Final answer
    x = 434,624.59

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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.