Home / 690,885.35-1,036,639.06-374,868.71

Finding the Fourth Proportional to 690,885.35, 1,036,639.06 and 374,868.71

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Solution

The fourth proportional to 690,885.35, 1,036,639.06 and 374,868.71 is: 562,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,885.35 : 1,036,639.06 = 374,868.71 : x
  2. Step 2: Convert to fraction form
    690,885.35/1,036,639.06 = 374,868.71/x
  3. Step 3: Cross multiply
    690,885.35x = 1,036,639.06 × 374,868.71
  4. Step 4: Simplify right side
    690,885.35x = 388,603,547,157.81
  5. Step 5: Solve for x
    x = 388,603,547,157.81/690,885.35
  6. Step 6: Final answer
    x = 562,471.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.