Home / 921,062.63-1,271,017.22-507,585.98

Finding the Fourth Proportional to 921,062.63, 1,271,017.22 and 507,585.98

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Solution

The fourth proportional to 921,062.63, 1,271,017.22 and 507,585.98 is: 700,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,062.63 : 1,271,017.22 = 507,585.98 : x
  2. Step 2: Convert to fraction form
    921,062.63/1,271,017.22 = 507,585.98/x
  3. Step 3: Cross multiply
    921,062.63x = 1,271,017.22 × 507,585.98
  4. Step 4: Simplify right side
    921,062.63x = 645,150,512,317.56
  5. Step 5: Solve for x
    x = 645,150,512,317.56/921,062.63
  6. Step 6: Final answer
    x = 700,441.53

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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.