Home / 1,018,731.20-1,528,096.80-917,254.40

Finding the Fourth Proportional to 1,018,731.20, 1,528,096.80 and 917,254.40

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Solution

The fourth proportional to 1,018,731.20, 1,528,096.80 and 917,254.40 is: 1,375,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,731.20 : 1,528,096.80 = 917,254.40 : x
  2. Step 2: Convert to fraction form
    1,018,731.20/1,528,096.80 = 917,254.40/x
  3. Step 3: Cross multiply
    1,018,731.20x = 1,528,096.80 × 917,254.40
  4. Step 4: Simplify right side
    1,018,731.20x = 1,401,653,513,425.92
  5. Step 5: Solve for x
    x = 1,401,653,513,425.92/1,018,731.20
  6. Step 6: Final answer
    x = 1,375,881.60

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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.