Home / 920,941.45-1,381,599.02-289,708.45

Finding the Fourth Proportional to 920,941.45, 1,381,599.02 and 289,708.45

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Solution

The fourth proportional to 920,941.45, 1,381,599.02 and 289,708.45 is: 434,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,941.45 : 1,381,599.02 = 289,708.45 : x
  2. Step 2: Convert to fraction form
    920,941.45/1,381,599.02 = 289,708.45/x
  3. Step 3: Cross multiply
    920,941.45x = 1,381,599.02 × 289,708.45
  4. Step 4: Simplify right side
    920,941.45x = 400,260,905,703.18
  5. Step 5: Solve for x
    x = 400,260,905,703.18/920,941.45
  6. Step 6: Final answer
    x = 434,621.45

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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.