Home / 578,733.80-869,431.13-408,347.67

Finding the Fourth Proportional to 578,733.80, 869,431.13 and 408,347.67

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Solution

The fourth proportional to 578,733.80, 869,431.13 and 408,347.67 is: 613,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,733.80 : 869,431.13 = 408,347.67 : x
  2. Step 2: Convert to fraction form
    578,733.80/869,431.13 = 408,347.67/x
  3. Step 3: Cross multiply
    578,733.80x = 869,431.13 × 408,347.67
  4. Step 4: Simplify right side
    578,733.80x = 355,030,176,160.97
  5. Step 5: Solve for x
    x = 355,030,176,160.97/578,733.80
  6. Step 6: Final answer
    x = 613,460.24

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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.