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Finding the Fourth Proportional to 604,860.70, 907,291.05 and 415,903.90

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Solution

The fourth proportional to 604,860.70, 907,291.05 and 415,903.90 is: 623,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,860.70 : 907,291.05 = 415,903.90 : x
  2. Step 2: Convert to fraction form
    604,860.70/907,291.05 = 415,903.90/x
  3. Step 3: Cross multiply
    604,860.70x = 907,291.05 × 415,903.90
  4. Step 4: Simplify right side
    604,860.70x = 377,345,886,130.10
  5. Step 5: Solve for x
    x = 377,345,886,130.10/604,860.70
  6. Step 6: Final answer
    x = 623,855.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.