Home / 738,165.12-1,018,671.21-415,880.16

Finding the Fourth Proportional to 738,165.12, 1,018,671.21 and 415,880.16

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Solution

The fourth proportional to 738,165.12, 1,018,671.21 and 415,880.16 is: 573,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,165.12 : 1,018,671.21 = 415,880.16 : x
  2. Step 2: Convert to fraction form
    738,165.12/1,018,671.21 = 415,880.16/x
  3. Step 3: Cross multiply
    738,165.12x = 1,018,671.21 × 415,880.16
  4. Step 4: Simplify right side
    738,165.12x = 423,645,145,802.19
  5. Step 5: Solve for x
    x = 423,645,145,802.19/738,165.12
  6. Step 6: Final answer
    x = 573,916.51

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Double scale
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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.