Home / 772,473.69-1,066,123.54-428,386.14

Finding the Fourth Proportional to 772,473.69, 1,066,123.54 and 428,386.14

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Solution

The fourth proportional to 772,473.69, 1,066,123.54 and 428,386.14 is: 591,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,473.69 : 1,066,123.54 = 428,386.14 : x
  2. Step 2: Convert to fraction form
    772,473.69/1,066,123.54 = 428,386.14/x
  3. Step 3: Cross multiply
    772,473.69x = 1,066,123.54 × 428,386.14
  4. Step 4: Simplify right side
    772,473.69x = 456,712,552,802.53
  5. Step 5: Solve for x
    x = 456,712,552,802.53/772,473.69
  6. Step 6: Final answer
    x = 591,233.80

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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.