Home / 830,717.84-1,248,328.02-451,918.51

Finding the Fourth Proportional to 830,717.84, 1,248,328.02 and 451,918.51

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Solution

The fourth proportional to 830,717.84, 1,248,328.02 and 451,918.51 is: 679,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,717.84 : 1,248,328.02 = 451,918.51 : x
  2. Step 2: Convert to fraction form
    830,717.84/1,248,328.02 = 451,918.51/x
  3. Step 3: Cross multiply
    830,717.84x = 1,248,328.02 × 451,918.51
  4. Step 4: Simplify right side
    830,717.84x = 564,142,537,363.53
  5. Step 5: Solve for x
    x = 564,142,537,363.53/830,717.84
  6. Step 6: Final answer
    x = 679,102.47

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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.