Home / 898,717.40-1,240,065.65-511,509.93

Finding the Fourth Proportional to 898,717.40, 1,240,065.65 and 511,509.93

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Solution

The fourth proportional to 898,717.40, 1,240,065.65 and 511,509.93 is: 705,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,717.40 : 1,240,065.65 = 511,509.93 : x
  2. Step 2: Convert to fraction form
    898,717.40/1,240,065.65 = 511,509.93/x
  3. Step 3: Cross multiply
    898,717.40x = 1,240,065.65 × 511,509.93
  4. Step 4: Simplify right side
    898,717.40x = 634,305,893,826.90
  5. Step 5: Solve for x
    x = 634,305,893,826.90/898,717.40
  6. Step 6: Final answer
    x = 705,790.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.