Home / 820,457.54-1,132,345.53-457,904.76

Finding the Fourth Proportional to 820,457.54, 1,132,345.53 and 457,904.76

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Solution

The fourth proportional to 820,457.54, 1,132,345.53 and 457,904.76 is: 631,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,457.54 : 1,132,345.53 = 457,904.76 : x
  2. Step 2: Convert to fraction form
    820,457.54/1,132,345.53 = 457,904.76/x
  3. Step 3: Cross multiply
    820,457.54x = 1,132,345.53 × 457,904.76
  4. Step 4: Simplify right side
    820,457.54x = 518,506,403,905.43
  5. Step 5: Solve for x
    x = 518,506,403,905.43/820,457.54
  6. Step 6: Final answer
    x = 631,972.26

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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.