Home / 788,711.40-1,183,844.70-389,802.60

Finding the Fourth Proportional to 788,711.40, 1,183,844.70 and 389,802.60

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Solution

The fourth proportional to 788,711.40, 1,183,844.70 and 389,802.60 is: 585,088.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,711.40 : 1,183,844.70 = 389,802.60 : x
  2. Step 2: Convert to fraction form
    788,711.40/1,183,844.70 = 389,802.60/x
  3. Step 3: Cross multiply
    788,711.40x = 1,183,844.70 × 389,802.60
  4. Step 4: Simplify right side
    788,711.40x = 461,465,742,056.22
  5. Step 5: Solve for x
    x = 461,465,742,056.22/788,711.40
  6. Step 6: Final answer
    x = 585,088.21

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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.