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Finding the Fourth Proportional to 527,920.58, 728,339.48 and 346,730.74

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Solution

The fourth proportional to 527,920.58, 728,339.48 and 346,730.74 is: 478,363.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,920.58 : 728,339.48 = 346,730.74 : x
  2. Step 2: Convert to fraction form
    527,920.58/728,339.48 = 346,730.74/x
  3. Step 3: Cross multiply
    527,920.58x = 728,339.48 × 346,730.74
  4. Step 4: Simplify right side
    527,920.58x = 252,537,684,617.35
  5. Step 5: Solve for x
    x = 252,537,684,617.35/527,920.58
  6. Step 6: Final answer
    x = 478,363.02

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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.