Home / 760,840.17-1,049,946.52-421,301.13

Finding the Fourth Proportional to 760,840.17, 1,049,946.52 and 421,301.13

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Solution

The fourth proportional to 760,840.17, 1,049,946.52 and 421,301.13 is: 581,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,840.17 : 1,049,946.52 = 421,301.13 : x
  2. Step 2: Convert to fraction form
    760,840.17/1,049,946.52 = 421,301.13/x
  3. Step 3: Cross multiply
    760,840.17x = 1,049,946.52 × 421,301.13
  4. Step 4: Simplify right side
    760,840.17x = 442,343,655,315.57
  5. Step 5: Solve for x
    x = 442,343,655,315.57/760,840.17
  6. Step 6: Final answer
    x = 581,388.41

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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.