Home / 765,678.24-1,056,618-426,139.20

Finding the Fourth Proportional to 765,678.24, 1,056,618 and 426,139.20

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Solution

The fourth proportional to 765,678.24, 1,056,618 and 426,139.20 is: 588,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,678.24 : 1,056,618 = 426,139.20 : x
  2. Step 2: Convert to fraction form
    765,678.24/1,056,618 = 426,139.20/x
  3. Step 3: Cross multiply
    765,678.24x = 1,056,618 × 426,139.20
  4. Step 4: Simplify right side
    765,678.24x = 450,266,349,225.60
  5. Step 5: Solve for x
    x = 450,266,349,225.60/765,678.24
  6. Step 6: Final answer
    x = 588,062.09

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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.