Home / 765,332.12-1,055,804.95-493,487.34

Finding the Fourth Proportional to 765,332.12, 1,055,804.95 and 493,487.34

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Solution

The fourth proportional to 765,332.12, 1,055,804.95 and 493,487.34 is: 680,784.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,332.12 : 1,055,804.95 = 493,487.34 : x
  2. Step 2: Convert to fraction form
    765,332.12/1,055,804.95 = 493,487.34/x
  3. Step 3: Cross multiply
    765,332.12x = 1,055,804.95 × 493,487.34
  4. Step 4: Simplify right side
    765,332.12x = 521,026,370,216.06
  5. Step 5: Solve for x
    x = 521,026,370,216.06/765,332.12
  6. Step 6: Final answer
    x = 680,784.67

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Double scale
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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.