Home / 739,730.61-1,020,770.10-453,211.74

Finding the Fourth Proportional to 739,730.61, 1,020,770.10 and 453,211.74

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Solution

The fourth proportional to 739,730.61, 1,020,770.10 and 453,211.74 is: 625,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,730.61 : 1,020,770.10 = 453,211.74 : x
  2. Step 2: Convert to fraction form
    739,730.61/1,020,770.10 = 453,211.74/x
  3. Step 3: Cross multiply
    739,730.61x = 1,020,770.10 × 453,211.74
  4. Step 4: Simplify right side
    739,730.61x = 462,624,993,160.97
  5. Step 5: Solve for x
    x = 462,624,993,160.97/739,730.61
  6. Step 6: Final answer
    x = 625,396.58

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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.