Home / 750,761.64-1,125,482.58-390,173.40

Finding the Fourth Proportional to 750,761.64, 1,125,482.58 and 390,173.40

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Solution

The fourth proportional to 750,761.64, 1,125,482.58 and 390,173.40 is: 584,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,761.64 : 1,125,482.58 = 390,173.40 : x
  2. Step 2: Convert to fraction form
    750,761.64/1,125,482.58 = 390,173.40/x
  3. Step 3: Cross multiply
    750,761.64x = 1,125,482.58 × 390,173.40
  4. Step 4: Simplify right side
    750,761.64x = 439,133,364,879.37
  5. Step 5: Solve for x
    x = 439,133,364,879.37/750,761.64
  6. Step 6: Final answer
    x = 584,917.16

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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.