Home / 989,350.08-1,483,023.36-390,733.32

Finding the Fourth Proportional to 989,350.08, 1,483,023.36 and 390,733.32

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Solution

The fourth proportional to 989,350.08, 1,483,023.36 and 390,733.32 is: 585,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,350.08 : 1,483,023.36 = 390,733.32 : x
  2. Step 2: Convert to fraction form
    989,350.08/1,483,023.36 = 390,733.32/x
  3. Step 3: Cross multiply
    989,350.08x = 1,483,023.36 × 390,733.32
  4. Step 4: Simplify right side
    989,350.08x = 579,466,641,090.36
  5. Step 5: Solve for x
    x = 579,466,641,090.36/989,350.08
  6. Step 6: Final answer
    x = 585,704.35

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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.