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Finding the Fourth Proportional to 659,646.94, 910,314.53 and 357,840.94

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Solution

The fourth proportional to 659,646.94, 910,314.53 and 357,840.94 is: 493,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,646.94 : 910,314.53 = 357,840.94 : x
  2. Step 2: Convert to fraction form
    659,646.94/910,314.53 = 357,840.94/x
  3. Step 3: Cross multiply
    659,646.94x = 910,314.53 × 357,840.94
  4. Step 4: Simplify right side
    659,646.94x = 325,747,805,088.18
  5. Step 5: Solve for x
    x = 325,747,805,088.18/659,646.94
  6. Step 6: Final answer
    x = 493,821.45

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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.