Home / 529,941.54-731,312.18-288,218.92

Finding the Fourth Proportional to 529,941.54, 731,312.18 and 288,218.92

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Solution

The fourth proportional to 529,941.54, 731,312.18 and 288,218.92 is: 397,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,941.54 : 731,312.18 = 288,218.92 : x
  2. Step 2: Convert to fraction form
    529,941.54/731,312.18 = 288,218.92/x
  3. Step 3: Cross multiply
    529,941.54x = 731,312.18 × 288,218.92
  4. Step 4: Simplify right side
    529,941.54x = 210,778,006,702.45
  5. Step 5: Solve for x
    x = 210,778,006,702.45/529,941.54
  6. Step 6: Final answer
    x = 397,738.22

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Double scale
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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.