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Finding the Fourth Proportional to 560,159.40, 772,881.68 and 330,722.04

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Solution

The fourth proportional to 560,159.40, 772,881.68 and 330,722.04 is: 456,314.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,159.40 : 772,881.68 = 330,722.04 : x
  2. Step 2: Convert to fraction form
    560,159.40/772,881.68 = 330,722.04/x
  3. Step 3: Cross multiply
    560,159.40x = 772,881.68 × 330,722.04
  4. Step 4: Simplify right side
    560,159.40x = 255,609,005,888.23
  5. Step 5: Solve for x
    x = 255,609,005,888.23/560,159.40
  6. Step 6: Final answer
    x = 456,314.77

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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.