Home / 909,475.47-1,254,860.37-516,977.63

Finding the Fourth Proportional to 909,475.47, 1,254,860.37 and 516,977.63

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Solution

The fourth proportional to 909,475.47, 1,254,860.37 and 516,977.63 is: 713,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,475.47 : 1,254,860.37 = 516,977.63 : x
  2. Step 2: Convert to fraction form
    909,475.47/1,254,860.37 = 516,977.63/x
  3. Step 3: Cross multiply
    909,475.47x = 1,254,860.37 × 516,977.63
  4. Step 4: Simplify right side
    909,475.47x = 648,734,740,063.52
  5. Step 5: Solve for x
    x = 648,734,740,063.52/909,475.47
  6. Step 6: Final answer
    x = 713,306.47

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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.