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Finding the Fourth Proportional to 659,657.10, 910,328.54 and 357,851.10

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Solution

The fourth proportional to 659,657.10, 910,328.54 and 357,851.10 is: 493,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,657.10 : 910,328.54 = 357,851.10 : x
  2. Step 2: Convert to fraction form
    659,657.10/910,328.54 = 357,851.10/x
  3. Step 3: Cross multiply
    659,657.10x = 910,328.54 × 357,851.10
  4. Step 4: Simplify right side
    659,657.10x = 325,762,069,400.39
  5. Step 5: Solve for x
    x = 325,762,069,400.39/659,657.10
  6. Step 6: Final answer
    x = 493,835.46

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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.