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Finding the Fourth Proportional to 607,303.69, 838,428.93 and 403,630.81

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Solution

The fourth proportional to 607,303.69, 838,428.93 and 403,630.81 is: 557,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,303.69 : 838,428.93 = 403,630.81 : x
  2. Step 2: Convert to fraction form
    607,303.69/838,428.93 = 403,630.81/x
  3. Step 3: Cross multiply
    607,303.69x = 838,428.93 × 403,630.81
  4. Step 4: Simplify right side
    607,303.69x = 338,415,748,143.33
  5. Step 5: Solve for x
    x = 338,415,748,143.33/607,303.69
  6. Step 6: Final answer
    x = 557,243.03

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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.