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Finding the Fourth Proportional to 665,927.04, 918,973.44 and 364,123.20

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Solution

The fourth proportional to 665,927.04, 918,973.44 and 364,123.20 is: 502,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,927.04 : 918,973.44 = 364,123.20 : x
  2. Step 2: Convert to fraction form
    665,927.04/918,973.44 = 364,123.20/x
  3. Step 3: Cross multiply
    665,927.04x = 918,973.44 × 364,123.20
  4. Step 4: Simplify right side
    665,927.04x = 334,619,549,687.81
  5. Step 5: Solve for x
    x = 334,619,549,687.81/665,927.04
  6. Step 6: Final answer
    x = 502,486.80

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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.