Home / 859,457.67-1,288,743.02-385,737.67

Finding the Fourth Proportional to 859,457.67, 1,288,743.02 and 385,737.67

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Solution

The fourth proportional to 859,457.67, 1,288,743.02 and 385,737.67 is: 578,407.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,457.67 : 1,288,743.02 = 385,737.67 : x
  2. Step 2: Convert to fraction form
    859,457.67/1,288,743.02 = 385,737.67/x
  3. Step 3: Cross multiply
    859,457.67x = 1,288,743.02 × 385,737.67
  4. Step 4: Simplify right side
    859,457.67x = 497,116,729,763.56
  5. Step 5: Solve for x
    x = 497,116,729,763.56/859,457.67
  6. Step 6: Final answer
    x = 578,407.46

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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.