Home / 702,985.20-1,054,931.40-387,668.40

Finding the Fourth Proportional to 702,985.20, 1,054,931.40 and 387,668.40

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Solution

The fourth proportional to 702,985.20, 1,054,931.40 and 387,668.40 is: 581,752.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,985.20 : 1,054,931.40 = 387,668.40 : x
  2. Step 2: Convert to fraction form
    702,985.20/1,054,931.40 = 387,668.40/x
  3. Step 3: Cross multiply
    702,985.20x = 1,054,931.40 × 387,668.40
  4. Step 4: Simplify right side
    702,985.20x = 408,963,567,947.76
  5. Step 5: Solve for x
    x = 408,963,567,947.76/702,985.20
  6. Step 6: Final answer
    x = 581,752.74

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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.