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Finding the Fourth Proportional to 521,590.32, 719,812.35 and 292,157.46

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Solution

The fourth proportional to 521,590.32, 719,812.35 and 292,157.46 is: 403,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,590.32 : 719,812.35 = 292,157.46 : x
  2. Step 2: Convert to fraction form
    521,590.32/719,812.35 = 292,157.46/x
  3. Step 3: Cross multiply
    521,590.32x = 719,812.35 × 292,157.46
  4. Step 4: Simplify right side
    521,590.32x = 210,298,547,852.63
  5. Step 5: Solve for x
    x = 210,298,547,852.63/521,590.32
  6. Step 6: Final answer
    x = 403,187.21

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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.