Home / 1,565,922.99-2,160,937.74-912,507.40

Finding the Fourth Proportional to 1,565,922.99, 2,160,937.74 and 912,507.40

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Solution

The fourth proportional to 1,565,922.99, 2,160,937.74 and 912,507.40 is: 1,259,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,922.99 : 2,160,937.74 = 912,507.40 : x
  2. Step 2: Convert to fraction form
    1,565,922.99/2,160,937.74 = 912,507.40/x
  3. Step 3: Cross multiply
    1,565,922.99x = 2,160,937.74 × 912,507.40
  4. Step 4: Simplify right side
    1,565,922.99x = 1,971,871,678,689.28
  5. Step 5: Solve for x
    x = 1,971,871,678,689.28/1,565,922.99
  6. Step 6: Final answer
    x = 1,259,239.24

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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.