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Finding the Fourth Proportional to 660,030.84, 910,842.48 and 358,224.84

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Solution

The fourth proportional to 660,030.84, 910,842.48 and 358,224.84 is: 494,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,030.84 : 910,842.48 = 358,224.84 : x
  2. Step 2: Convert to fraction form
    660,030.84/910,842.48 = 358,224.84/x
  3. Step 3: Cross multiply
    660,030.84x = 910,842.48 × 358,224.84
  4. Step 4: Simplify right side
    660,030.84x = 326,286,401,663.20
  5. Step 5: Solve for x
    x = 326,286,401,663.20/660,030.84
  6. Step 6: Final answer
    x = 494,350.24

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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.