Home / 1,312,702.76-1,969,054.04-315,430.76

Finding the Fourth Proportional to 1,312,702.76, 1,969,054.04 and 315,430.76

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Solution

The fourth proportional to 1,312,702.76, 1,969,054.04 and 315,430.76 is: 473,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,702.76 : 1,969,054.04 = 315,430.76 : x
  2. Step 2: Convert to fraction form
    1,312,702.76/1,969,054.04 = 315,430.76/x
  3. Step 3: Cross multiply
    1,312,702.76x = 1,969,054.04 × 315,430.76
  4. Step 4: Simplify right side
    1,312,702.76x = 621,100,212,318.27
  5. Step 5: Solve for x
    x = 621,100,212,318.27/1,312,702.76
  6. Step 6: Final answer
    x = 473,146.12

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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.