Home / 745,392.54-1,117,214.01-390,573.66

Finding the Fourth Proportional to 745,392.54, 1,117,214.01 and 390,573.66

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Solution

The fourth proportional to 745,392.54, 1,117,214.01 and 390,573.66 is: 585,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,392.54 : 1,117,214.01 = 390,573.66 : x
  2. Step 2: Convert to fraction form
    745,392.54/1,117,214.01 = 390,573.66/x
  3. Step 3: Cross multiply
    745,392.54x = 1,117,214.01 × 390,573.66
  4. Step 4: Simplify right side
    745,392.54x = 436,354,364,888.98
  5. Step 5: Solve for x
    x = 436,354,364,888.98/745,392.54
  6. Step 6: Final answer
    x = 585,402.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.