Home / 529,829.40-792,929.70-319,618.20

Finding the Fourth Proportional to 529,829.40, 792,929.70 and 319,618.20

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Solution

The fourth proportional to 529,829.40, 792,929.70 and 319,618.20 is: 478,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,829.40 : 792,929.70 = 319,618.20 : x
  2. Step 2: Convert to fraction form
    529,829.40/792,929.70 = 319,618.20/x
  3. Step 3: Cross multiply
    529,829.40x = 792,929.70 × 319,618.20
  4. Step 4: Simplify right side
    529,829.40x = 253,434,763,440.54
  5. Step 5: Solve for x
    x = 253,434,763,440.54/529,829.40
  6. Step 6: Final answer
    x = 478,332.77

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1.5x scale

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.