Home / 1,039,438.40-1,559,157.48-391,136.48

Finding the Fourth Proportional to 1,039,438.40, 1,559,157.48 and 391,136.48

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Solution

The fourth proportional to 1,039,438.40, 1,559,157.48 and 391,136.48 is: 586,704.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,438.40 : 1,559,157.48 = 391,136.48 : x
  2. Step 2: Convert to fraction form
    1,039,438.40/1,559,157.48 = 391,136.48/x
  3. Step 3: Cross multiply
    1,039,438.40x = 1,559,157.48 × 391,136.48
  4. Step 4: Simplify right side
    1,039,438.40x = 609,843,368,492.87
  5. Step 5: Solve for x
    x = 609,843,368,492.87/1,039,438.40
  6. Step 6: Final answer
    x = 586,704.67

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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.