Home / 760,577.12-1,050,307.72-489,116.48

Finding the Fourth Proportional to 760,577.12, 1,050,307.72 and 489,116.48

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Solution

The fourth proportional to 760,577.12, 1,050,307.72 and 489,116.48 is: 675,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,577.12 : 1,050,307.72 = 489,116.48 : x
  2. Step 2: Convert to fraction form
    760,577.12/1,050,307.72 = 489,116.48/x
  3. Step 3: Cross multiply
    760,577.12x = 1,050,307.72 × 489,116.48
  4. Step 4: Simplify right side
    760,577.12x = 513,722,814,923.23
  5. Step 5: Solve for x
    x = 513,722,814,923.23/760,577.12
  6. Step 6: Final answer
    x = 675,438.17

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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.