Home / 545,784.20-817,898.70-402,511.40

Finding the Fourth Proportional to 545,784.20, 817,898.70 and 402,511.40

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Solution

The fourth proportional to 545,784.20, 817,898.70 and 402,511.40 is: 603,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,784.20 : 817,898.70 = 402,511.40 : x
  2. Step 2: Convert to fraction form
    545,784.20/817,898.70 = 402,511.40/x
  3. Step 3: Cross multiply
    545,784.20x = 817,898.70 × 402,511.40
  4. Step 4: Simplify right side
    545,784.20x = 329,213,550,795.18
  5. Step 5: Solve for x
    x = 329,213,550,795.18/545,784.20
  6. Step 6: Final answer
    x = 603,193.63

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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.