Home / 679,125.60-1,018,688.40-529,826.40

Finding the Fourth Proportional to 679,125.60, 1,018,688.40 and 529,826.40

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Solution

The fourth proportional to 679,125.60, 1,018,688.40 and 529,826.40 is: 794,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,125.60 : 1,018,688.40 = 529,826.40 : x
  2. Step 2: Convert to fraction form
    679,125.60/1,018,688.40 = 529,826.40/x
  3. Step 3: Cross multiply
    679,125.60x = 1,018,688.40 × 529,826.40
  4. Step 4: Simplify right side
    679,125.60x = 539,728,007,693.76
  5. Step 5: Solve for x
    x = 539,728,007,693.76/679,125.60
  6. Step 6: Final answer
    x = 794,739.60

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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.