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Finding the Fourth Proportional to 602,019.12, 830,802.24 and 340,353.60

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Solution

The fourth proportional to 602,019.12, 830,802.24 and 340,353.60 is: 469,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,019.12 : 830,802.24 = 340,353.60 : x
  2. Step 2: Convert to fraction form
    602,019.12/830,802.24 = 340,353.60/x
  3. Step 3: Cross multiply
    602,019.12x = 830,802.24 × 340,353.60
  4. Step 4: Simplify right side
    602,019.12x = 282,766,533,272.06
  5. Step 5: Solve for x
    x = 282,766,533,272.06/602,019.12
  6. Step 6: Final answer
    x = 469,696.93

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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.