Home / 916,070.31-1,374,084.81-316,995.32

Finding the Fourth Proportional to 916,070.31, 1,374,084.81 and 316,995.32

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Solution

The fourth proportional to 916,070.31, 1,374,084.81 and 316,995.32 is: 475,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,070.31 : 1,374,084.81 = 316,995.32 : x
  2. Step 2: Convert to fraction form
    916,070.31/1,374,084.81 = 316,995.32/x
  3. Step 3: Cross multiply
    916,070.31x = 1,374,084.81 × 316,995.32
  4. Step 4: Simplify right side
    916,070.31x = 435,578,457,488.30
  5. Step 5: Solve for x
    x = 435,578,457,488.30/916,070.31
  6. Step 6: Final answer
    x = 475,485.84

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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.