Home / 760,865.76-1,050,017.04-421,339.68

Finding the Fourth Proportional to 760,865.76, 1,050,017.04 and 421,339.68

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Solution

The fourth proportional to 760,865.76, 1,050,017.04 and 421,339.68 is: 581,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,865.76 : 1,050,017.04 = 421,339.68 : x
  2. Step 2: Convert to fraction form
    760,865.76/1,050,017.04 = 421,339.68/x
  3. Step 3: Cross multiply
    760,865.76x = 1,050,017.04 × 421,339.68
  4. Step 4: Simplify right side
    760,865.76x = 442,413,843,628.15
  5. Step 5: Solve for x
    x = 442,413,843,628.15/760,865.76
  6. Step 6: Final answer
    x = 581,461.10

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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.