Finding the Fourth Proportional to 828,966.55, 1,143,973.56 and 461,435.70
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Solution
The fourth proportional to 828,966.55, 1,143,973.56 and 461,435.70 is: 636,781.11
Step by Step Solution
- Step 1: Write the proportion equation
828,966.55 : 1,143,973.56 = 461,435.70 : x - Step 2: Convert to fraction form
828,966.55/1,143,973.56 = 461,435.70/x - Step 3: Cross multiply
828,966.55x = 1,143,973.56 × 461,435.70 - Step 4: Simplify right side
828,966.55x = 527,870,238,132.91 - Step 5: Solve for x
x = 527,870,238,132.91/828,966.55 - Step 6: Final answer
x = 636,781.11
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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.