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Finding the Fourth Proportional to 530,004.60, 731,339.82 and 358,296.08

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Solution

The fourth proportional to 530,004.60, 731,339.82 and 358,296.08 is: 494,403.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,004.60 : 731,339.82 = 358,296.08 : x
  2. Step 2: Convert to fraction form
    530,004.60/731,339.82 = 358,296.08/x
  3. Step 3: Cross multiply
    530,004.60x = 731,339.82 × 358,296.08
  4. Step 4: Simplify right side
    530,004.60x = 262,036,186,997.21
  5. Step 5: Solve for x
    x = 262,036,186,997.21/530,004.60
  6. Step 6: Final answer
    x = 494,403.61

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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.