Home / 921,065.13-1,271,020.66-507,588.48

Finding the Fourth Proportional to 921,065.13, 1,271,020.66 and 507,588.48

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Solution

The fourth proportional to 921,065.13, 1,271,020.66 and 507,588.48 is: 700,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,065.13 : 1,271,020.66 = 507,588.48 : x
  2. Step 2: Convert to fraction form
    921,065.13/1,271,020.66 = 507,588.48/x
  3. Step 3: Cross multiply
    921,065.13x = 1,271,020.66 × 507,588.48
  4. Step 4: Simplify right side
    921,065.13x = 645,155,444,858.00
  5. Step 5: Solve for x
    x = 645,155,444,858.00/921,065.13
  6. Step 6: Final answer
    x = 700,444.98

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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.