Home / 659,669.64-909,782.16-507,077.18

Finding the Fourth Proportional to 659,669.64, 909,782.16 and 507,077.18

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Solution

The fourth proportional to 659,669.64, 909,782.16 and 507,077.18 is: 699,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,669.64 : 909,782.16 = 507,077.18 : x
  2. Step 2: Convert to fraction form
    659,669.64/909,782.16 = 507,077.18/x
  3. Step 3: Cross multiply
    659,669.64x = 909,782.16 × 507,077.18
  4. Step 4: Simplify right side
    659,669.64x = 461,329,772,107.11
  5. Step 5: Solve for x
    x = 461,329,772,107.11/659,669.64
  6. Step 6: Final answer
    x = 699,334.55

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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.