Home / 916,500.15-1,374,422.15-317,300.40

Finding the Fourth Proportional to 916,500.15, 1,374,422.15 and 317,300.40

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Solution

The fourth proportional to 916,500.15, 1,374,422.15 and 317,300.40 is: 475,837.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,500.15 : 1,374,422.15 = 317,300.40 : x
  2. Step 2: Convert to fraction form
    916,500.15/1,374,422.15 = 317,300.40/x
  3. Step 3: Cross multiply
    916,500.15x = 1,374,422.15 × 317,300.40
  4. Step 4: Simplify right side
    916,500.15x = 436,104,696,377.36
  5. Step 5: Solve for x
    x = 436,104,696,377.36/916,500.15
  6. Step 6: Final answer
    x = 475,837.02

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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.