Home / 1,507,117.65-2,079,701.69-862,390.05

Finding the Fourth Proportional to 1,507,117.65, 2,079,701.69 and 862,390.05

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Solution

The fourth proportional to 1,507,117.65, 2,079,701.69 and 862,390.05 is: 1,190,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,117.65 : 2,079,701.69 = 862,390.05 : x
  2. Step 2: Convert to fraction form
    1,507,117.65/2,079,701.69 = 862,390.05/x
  3. Step 3: Cross multiply
    1,507,117.65x = 2,079,701.69 × 862,390.05
  4. Step 4: Simplify right side
    1,507,117.65x = 1,793,514,044,424.18
  5. Step 5: Solve for x
    x = 1,793,514,044,424.18/1,507,117.65
  6. Step 6: Final answer
    x = 1,190,029.22

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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.