Home / 730,905.40-1,095,969.30-309,705.40

Finding the Fourth Proportional to 730,905.40, 1,095,969.30 and 309,705.40

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Solution

The fourth proportional to 730,905.40, 1,095,969.30 and 309,705.40 is: 464,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,905.40 : 1,095,969.30 = 309,705.40 : x
  2. Step 2: Convert to fraction form
    730,905.40/1,095,969.30 = 309,705.40/x
  3. Step 3: Cross multiply
    730,905.40x = 1,095,969.30 × 309,705.40
  4. Step 4: Simplify right side
    730,905.40x = 339,427,610,444.22
  5. Step 5: Solve for x
    x = 339,427,610,444.22/730,905.40
  6. Step 6: Final answer
    x = 464,393.35

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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.