Home / 918,419.90-1,376,321.54-676,632.32

Finding the Fourth Proportional to 918,419.90, 1,376,321.54 and 676,632.32

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Solution

The fourth proportional to 918,419.90, 1,376,321.54 and 676,632.32 is: 1,013,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,419.90 : 1,376,321.54 = 676,632.32 : x
  2. Step 2: Convert to fraction form
    918,419.90/1,376,321.54 = 676,632.32/x
  3. Step 3: Cross multiply
    918,419.90x = 1,376,321.54 × 676,632.32
  4. Step 4: Simplify right side
    918,419.90x = 931,263,626,411.40
  5. Step 5: Solve for x
    x = 931,263,626,411.40/918,419.90
  6. Step 6: Final answer
    x = 1,013,984.60

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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.