Home / 778,649.49-1,074,461.63-472,893.21

Finding the Fourth Proportional to 778,649.49, 1,074,461.63 and 472,893.21

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Solution

The fourth proportional to 778,649.49, 1,074,461.63 and 472,893.21 is: 652,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,649.49 : 1,074,461.63 = 472,893.21 : x
  2. Step 2: Convert to fraction form
    778,649.49/1,074,461.63 = 472,893.21/x
  3. Step 3: Cross multiply
    778,649.49x = 1,074,461.63 × 472,893.21
  4. Step 4: Simplify right side
    778,649.49x = 508,105,606,868.07
  5. Step 5: Solve for x
    x = 508,105,606,868.07/778,649.49
  6. Step 6: Final answer
    x = 652,547.28

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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.