Home / 1,312,702.92-1,969,054.38-315,430.92

Finding the Fourth Proportional to 1,312,702.92, 1,969,054.38 and 315,430.92

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Solution

The fourth proportional to 1,312,702.92, 1,969,054.38 and 315,430.92 is: 473,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,702.92 : 1,969,054.38 = 315,430.92 : x
  2. Step 2: Convert to fraction form
    1,312,702.92/1,969,054.38 = 315,430.92/x
  3. Step 3: Cross multiply
    1,312,702.92x = 1,969,054.38 × 315,430.92
  4. Step 4: Simplify right side
    1,312,702.92x = 621,100,634,613.43
  5. Step 5: Solve for x
    x = 621,100,634,613.43/1,312,702.92
  6. Step 6: Final answer
    x = 473,146.38

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Double scale
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Similar ratio
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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.