Home / 936,275.10-1,292,054.40-528,509.49

Finding the Fourth Proportional to 936,275.10, 1,292,054.40 and 528,509.49

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Solution

The fourth proportional to 936,275.10, 1,292,054.40 and 528,509.49 is: 729,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,275.10 : 1,292,054.40 = 528,509.49 : x
  2. Step 2: Convert to fraction form
    936,275.10/1,292,054.40 = 528,509.49/x
  3. Step 3: Cross multiply
    936,275.10x = 1,292,054.40 × 528,509.49
  4. Step 4: Simplify right side
    936,275.10x = 682,863,011,996.26
  5. Step 5: Solve for x
    x = 682,863,011,996.26/936,275.10
  6. Step 6: Final answer
    x = 729,340.14

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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.