Home / 1,298,678.40-1,948,017.60-352,166.40

Finding the Fourth Proportional to 1,298,678.40, 1,948,017.60 and 352,166.40

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Solution

The fourth proportional to 1,298,678.40, 1,948,017.60 and 352,166.40 is: 528,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,678.40 : 1,948,017.60 = 352,166.40 : x
  2. Step 2: Convert to fraction form
    1,298,678.40/1,948,017.60 = 352,166.40/x
  3. Step 3: Cross multiply
    1,298,678.40x = 1,948,017.60 × 352,166.40
  4. Step 4: Simplify right side
    1,298,678.40x = 686,026,345,328.64
  5. Step 5: Solve for x
    x = 686,026,345,328.64/1,298,678.40
  6. Step 6: Final answer
    x = 528,249.60

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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.