Home / 760,102.16-1,048,927.14-420,570.40

Finding the Fourth Proportional to 760,102.16, 1,048,927.14 and 420,570.40

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Solution

The fourth proportional to 760,102.16, 1,048,927.14 and 420,570.40 is: 580,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,102.16 : 1,048,927.14 = 420,570.40 : x
  2. Step 2: Convert to fraction form
    760,102.16/1,048,927.14 = 420,570.40/x
  3. Step 3: Cross multiply
    760,102.16x = 1,048,927.14 × 420,570.40
  4. Step 4: Simplify right side
    760,102.16x = 441,147,706,840.66
  5. Step 5: Solve for x
    x = 441,147,706,840.66/760,102.16
  6. Step 6: Final answer
    x = 580,379.49

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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.