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Finding the Fourth Proportional to 512,460.04, 707,030.40 and 286,061.80

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Solution

The fourth proportional to 512,460.04, 707,030.40 and 286,061.80 is: 394,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,460.04 : 707,030.40 = 286,061.80 : x
  2. Step 2: Convert to fraction form
    512,460.04/707,030.40 = 286,061.80/x
  3. Step 3: Cross multiply
    512,460.04x = 707,030.40 × 286,061.80
  4. Step 4: Simplify right side
    512,460.04x = 202,254,388,878.72
  5. Step 5: Solve for x
    x = 202,254,388,878.72/512,460.04
  6. Step 6: Final answer
    x = 394,673.48

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1.5x scale

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.