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Finding the Fourth Proportional to 709,798.04, 979,484.48 and 403,868.22

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Solution

The fourth proportional to 709,798.04, 979,484.48 and 403,868.22 is: 557,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,798.04 : 979,484.48 = 403,868.22 : x
  2. Step 2: Convert to fraction form
    709,798.04/979,484.48 = 403,868.22/x
  3. Step 3: Cross multiply
    709,798.04x = 979,484.48 × 403,868.22
  4. Step 4: Simplify right side
    709,798.04x = 395,582,653,455.23
  5. Step 5: Solve for x
    x = 395,582,653,455.23/709,798.04
  6. Step 6: Final answer
    x = 557,317.20

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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.