Home / 578,024.80-869,110.80-486,786.40

Finding the Fourth Proportional to 578,024.80, 869,110.80 and 486,786.40

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Solution

The fourth proportional to 578,024.80, 869,110.80 and 486,786.40 is: 731,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,024.80 : 869,110.80 = 486,786.40 : x
  2. Step 2: Convert to fraction form
    578,024.80/869,110.80 = 486,786.40/x
  3. Step 3: Cross multiply
    578,024.80x = 869,110.80 × 486,786.40
  4. Step 4: Simplify right side
    578,024.80x = 423,071,317,533.12
  5. Step 5: Solve for x
    x = 423,071,317,533.12/578,024.80
  6. Step 6: Final answer
    x = 731,925.89

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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.