Home / 472,721.13-652,364.28-257,869.04

Finding the Fourth Proportional to 472,721.13, 652,364.28 and 257,869.04

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Solution

The fourth proportional to 472,721.13, 652,364.28 and 257,869.04 is: 355,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,721.13 : 652,364.28 = 257,869.04 : x
  2. Step 2: Convert to fraction form
    472,721.13/652,364.28 = 257,869.04/x
  3. Step 3: Cross multiply
    472,721.13x = 652,364.28 × 257,869.04
  4. Step 4: Simplify right side
    472,721.13x = 168,224,547,352.07
  5. Step 5: Solve for x
    x = 168,224,547,352.07/472,721.13
  6. Step 6: Final answer
    x = 355,864.24

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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.