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Finding the Fourth Proportional to 586,420.44, 808,842.90 and 538,178.18

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Solution

The fourth proportional to 586,420.44, 808,842.90 and 538,178.18 is: 742,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,420.44 : 808,842.90 = 538,178.18 : x
  2. Step 2: Convert to fraction form
    586,420.44/808,842.90 = 538,178.18/x
  3. Step 3: Cross multiply
    586,420.44x = 808,842.90 × 538,178.18
  4. Step 4: Simplify right side
    586,420.44x = 435,301,599,827.92
  5. Step 5: Solve for x
    x = 435,301,599,827.92/586,420.44
  6. Step 6: Final answer
    x = 742,302.91

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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.