Home / 760,815.63-1,049,925.51-421,283.88

Finding the Fourth Proportional to 760,815.63, 1,049,925.51 and 421,283.88

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Solution

The fourth proportional to 760,815.63, 1,049,925.51 and 421,283.88 is: 581,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,815.63 : 1,049,925.51 = 421,283.88 : x
  2. Step 2: Convert to fraction form
    760,815.63/1,049,925.51 = 421,283.88/x
  3. Step 3: Cross multiply
    760,815.63x = 1,049,925.51 × 421,283.88
  4. Step 4: Simplify right side
    760,815.63x = 442,316,692,563.78
  5. Step 5: Solve for x
    x = 442,316,692,563.78/760,815.63
  6. Step 6: Final answer
    x = 581,371.72

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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.