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Finding the Fourth Proportional to 659,570.16, 910,208.40 and 357,764.16

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Solution

The fourth proportional to 659,570.16, 910,208.40 and 357,764.16 is: 493,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,570.16 : 910,208.40 = 357,764.16 : x
  2. Step 2: Convert to fraction form
    659,570.16/910,208.40 = 357,764.16/x
  3. Step 3: Cross multiply
    659,570.16x = 910,208.40 × 357,764.16
  4. Step 4: Simplify right side
    659,570.16x = 325,639,943,650.94
  5. Step 5: Solve for x
    x = 325,639,943,650.94/659,570.16
  6. Step 6: Final answer
    x = 493,715.40

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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.