Home / 1,312,343.70-1,968,515.55-315,071.70

Finding the Fourth Proportional to 1,312,343.70, 1,968,515.55 and 315,071.70

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Solution

The fourth proportional to 1,312,343.70, 1,968,515.55 and 315,071.70 is: 472,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,343.70 : 1,968,515.55 = 315,071.70 : x
  2. Step 2: Convert to fraction form
    1,312,343.70/1,968,515.55 = 315,071.70/x
  3. Step 3: Cross multiply
    1,312,343.70x = 1,968,515.55 × 315,071.70
  4. Step 4: Simplify right side
    1,312,343.70x = 620,223,540,814.94
  5. Step 5: Solve for x
    x = 620,223,540,814.94/1,312,343.70
  6. Step 6: Final answer
    x = 472,607.55

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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.