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Finding the Fourth Proportional to 518,293.58, 715,217.55 and 291,924.50

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Solution

The fourth proportional to 518,293.58, 715,217.55 and 291,924.50 is: 402,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,293.58 : 715,217.55 = 291,924.50 : x
  2. Step 2: Convert to fraction form
    518,293.58/715,217.55 = 291,924.50/x
  3. Step 3: Cross multiply
    518,293.58x = 715,217.55 × 291,924.50
  4. Step 4: Simplify right side
    518,293.58x = 208,789,525,674.98
  5. Step 5: Solve for x
    x = 208,789,525,674.98/518,293.58
  6. Step 6: Final answer
    x = 402,840.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.