Home / 1,277,411-1,916,424.36-478,699.52

Finding the Fourth Proportional to 1,277,411, 1,916,424.36 and 478,699.52

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Solution

The fourth proportional to 1,277,411, 1,916,424.36 and 478,699.52 is: 718,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,411 : 1,916,424.36 = 478,699.52 : x
  2. Step 2: Convert to fraction form
    1,277,411/1,916,424.36 = 478,699.52/x
  3. Step 3: Cross multiply
    1,277,411x = 1,916,424.36 × 478,699.52
  4. Step 4: Simplify right side
    1,277,411x = 917,391,421,248.31
  5. Step 5: Solve for x
    x = 917,391,421,248.31/1,277,411
  6. Step 6: Final answer
    x = 718,164.65

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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.