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Finding the Fourth Proportional to 612,245.80, 918,368.70 and 500,052.70

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Solution

The fourth proportional to 612,245.80, 918,368.70 and 500,052.70 is: 750,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,245.80 : 918,368.70 = 500,052.70 : x
  2. Step 2: Convert to fraction form
    612,245.80/918,368.70 = 500,052.70/x
  3. Step 3: Cross multiply
    612,245.80x = 918,368.70 × 500,052.70
  4. Step 4: Simplify right side
    612,245.80x = 459,232,748,030.49
  5. Step 5: Solve for x
    x = 459,232,748,030.49/612,245.80
  6. Step 6: Final answer
    x = 750,079.05

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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.