Home / 921,338.68-1,271,395.86-507,862.04

Finding the Fourth Proportional to 921,338.68, 1,271,395.86 and 507,862.04

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Solution

The fourth proportional to 921,338.68, 1,271,395.86 and 507,862.04 is: 700,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,338.68 : 1,271,395.86 = 507,862.04 : x
  2. Step 2: Convert to fraction form
    921,338.68/1,271,395.86 = 507,862.04/x
  3. Step 3: Cross multiply
    921,338.68x = 1,271,395.86 × 507,862.04
  4. Step 4: Simplify right side
    921,338.68x = 645,693,695,107.15
  5. Step 5: Solve for x
    x = 645,693,695,107.15/921,338.68
  6. Step 6: Final answer
    x = 700,821.22

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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.