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Finding the Fourth Proportional to 507,365.04, 760,981.80 and 191,780.88

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Solution

The fourth proportional to 507,365.04, 760,981.80 and 191,780.88 is: 287,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,365.04 : 760,981.80 = 191,780.88 : x
  2. Step 2: Convert to fraction form
    507,365.04/760,981.80 = 191,780.88/x
  3. Step 3: Cross multiply
    507,365.04x = 760,981.80 × 191,780.88
  4. Step 4: Simplify right side
    507,365.04x = 145,941,759,267.98
  5. Step 5: Solve for x
    x = 145,941,759,267.98/507,365.04
  6. Step 6: Final answer
    x = 287,646.46

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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.