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Finding the Fourth Proportional to 550,987.04, 760,303.62 and 309,296.18

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Solution

The fourth proportional to 550,987.04, 760,303.62 and 309,296.18 is: 426,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,987.04 : 760,303.62 = 309,296.18 : x
  2. Step 2: Convert to fraction form
    550,987.04/760,303.62 = 309,296.18/x
  3. Step 3: Cross multiply
    550,987.04x = 760,303.62 × 309,296.18
  4. Step 4: Simplify right side
    550,987.04x = 235,159,005,306.17
  5. Step 5: Solve for x
    x = 235,159,005,306.17/550,987.04
  6. Step 6: Final answer
    x = 426,795.89

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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.