Home / 1,117,818.60-1,676,598.30-319,223.40

Finding the Fourth Proportional to 1,117,818.60, 1,676,598.30 and 319,223.40

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Solution

The fourth proportional to 1,117,818.60, 1,676,598.30 and 319,223.40 is: 478,798.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,818.60 : 1,676,598.30 = 319,223.40 : x
  2. Step 2: Convert to fraction form
    1,117,818.60/1,676,598.30 = 319,223.40/x
  3. Step 3: Cross multiply
    1,117,818.60x = 1,676,598.30 × 319,223.40
  4. Step 4: Simplify right side
    1,117,818.60x = 535,209,409,760.22
  5. Step 5: Solve for x
    x = 535,209,409,760.22/1,117,818.60
  6. Step 6: Final answer
    x = 478,798.09

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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.