Home / 760,953.78-1,047,726.16-645,994.13

Finding the Fourth Proportional to 760,953.78, 1,047,726.16 and 645,994.13

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Solution

The fourth proportional to 760,953.78, 1,047,726.16 and 645,994.13 is: 889,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,953.78 : 1,047,726.16 = 645,994.13 : x
  2. Step 2: Convert to fraction form
    760,953.78/1,047,726.16 = 645,994.13/x
  3. Step 3: Cross multiply
    760,953.78x = 1,047,726.16 × 645,994.13
  4. Step 4: Simplify right side
    760,953.78x = 676,824,942,353.83
  5. Step 5: Solve for x
    x = 676,824,942,353.83/760,953.78
  6. Step 6: Final answer
    x = 889,442.91

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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.