Home / 711,746.60-982,210.27-389,456.68

Finding the Fourth Proportional to 711,746.60, 982,210.27 and 389,456.68

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Solution

The fourth proportional to 711,746.60, 982,210.27 and 389,456.68 is: 537,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,746.60 : 982,210.27 = 389,456.68 : x
  2. Step 2: Convert to fraction form
    711,746.60/982,210.27 = 389,456.68/x
  3. Step 3: Cross multiply
    711,746.60x = 982,210.27 × 389,456.68
  4. Step 4: Simplify right side
    711,746.60x = 382,528,350,816.10
  5. Step 5: Solve for x
    x = 382,528,350,816.10/711,746.60
  6. Step 6: Final answer
    x = 537,450.20

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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.