Home / 775,615.23-1,069,911.72-465,437.48

Finding the Fourth Proportional to 775,615.23, 1,069,911.72 and 465,437.48

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Solution

The fourth proportional to 775,615.23, 1,069,911.72 and 465,437.48 is: 642,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,615.23 : 1,069,911.72 = 465,437.48 : x
  2. Step 2: Convert to fraction form
    775,615.23/1,069,911.72 = 465,437.48/x
  3. Step 3: Cross multiply
    775,615.23x = 1,069,911.72 × 465,437.48
  4. Step 4: Simplify right side
    775,615.23x = 497,977,009,429.71
  5. Step 5: Solve for x
    x = 497,977,009,429.71/775,615.23
  6. Step 6: Final answer
    x = 642,041.30

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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.