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Finding the Fourth Proportional to 683,954.79, 943,368.08 and 480,051.20

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Solution

The fourth proportional to 683,954.79, 943,368.08 and 480,051.20 is: 662,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,954.79 : 943,368.08 = 480,051.20 : x
  2. Step 2: Convert to fraction form
    683,954.79/943,368.08 = 480,051.20/x
  3. Step 3: Cross multiply
    683,954.79x = 943,368.08 × 480,051.20
  4. Step 4: Simplify right side
    683,954.79x = 452,864,971,728.60
  5. Step 5: Solve for x
    x = 452,864,971,728.60/683,954.79
  6. Step 6: Final answer
    x = 662,127.06

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Double scale
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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.