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Finding the Fourth Proportional to 810,444.80, 1,118,412.80 and 452,748.80

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Solution

The fourth proportional to 810,444.80, 1,118,412.80 and 452,748.80 is: 624,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,444.80 : 1,118,412.80 = 452,748.80 : x
  2. Step 2: Convert to fraction form
    810,444.80/1,118,412.80 = 452,748.80/x
  3. Step 3: Cross multiply
    810,444.80x = 1,118,412.80 × 452,748.80
  4. Step 4: Simplify right side
    810,444.80x = 506,360,053,104.64
  5. Step 5: Solve for x
    x = 506,360,053,104.64/810,444.80
  6. Step 6: Final answer
    x = 624,792.77

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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.