Home / 666,904.15-920,076.51-437,588.02

Finding the Fourth Proportional to 666,904.15, 920,076.51 and 437,588.02

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Solution

The fourth proportional to 666,904.15, 920,076.51 and 437,588.02 is: 603,706.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,904.15 : 920,076.51 = 437,588.02 : x
  2. Step 2: Convert to fraction form
    666,904.15/920,076.51 = 437,588.02/x
  3. Step 3: Cross multiply
    666,904.15x = 920,076.51 × 437,588.02
  4. Step 4: Simplify right side
    666,904.15x = 402,614,458,259.41
  5. Step 5: Solve for x
    x = 402,614,458,259.41/666,904.15
  6. Step 6: Final answer
    x = 603,706.63

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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.