Home / 989,452.60-1,483,530.90-390,052.60

Finding the Fourth Proportional to 989,452.60, 1,483,530.90 and 390,052.60

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Solution

The fourth proportional to 989,452.60, 1,483,530.90 and 390,052.60 is: 584,823.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,452.60 : 1,483,530.90 = 390,052.60 : x
  2. Step 2: Convert to fraction form
    989,452.60/1,483,530.90 = 390,052.60/x
  3. Step 3: Cross multiply
    989,452.60x = 1,483,530.90 × 390,052.60
  4. Step 4: Simplify right side
    989,452.60x = 578,655,084,725.34
  5. Step 5: Solve for x
    x = 578,655,084,725.34/989,452.60
  6. Step 6: Final answer
    x = 584,823.45

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Double scale
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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.