Home / 999,702.84-1,379,555.56-570,121.24

Finding the Fourth Proportional to 999,702.84, 1,379,555.56 and 570,121.24

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Solution

The fourth proportional to 999,702.84, 1,379,555.56 and 570,121.24 is: 786,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,702.84 : 1,379,555.56 = 570,121.24 : x
  2. Step 2: Convert to fraction form
    999,702.84/1,379,555.56 = 570,121.24/x
  3. Step 3: Cross multiply
    999,702.84x = 1,379,555.56 × 570,121.24
  4. Step 4: Simplify right side
    999,702.84x = 786,513,926,516.09
  5. Step 5: Solve for x
    x = 786,513,926,516.09/999,702.84
  6. Step 6: Final answer
    x = 786,747.72

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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.