Finding the Fourth Proportional to 708,682.71, 977,953.95 and 418,387.80
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Solution
The fourth proportional to 708,682.71, 977,953.95 and 418,387.80 is: 577,358.52
Step by Step Solution
- Step 1: Write the proportion equation
708,682.71 : 977,953.95 = 418,387.80 : x - Step 2: Convert to fraction form
708,682.71/977,953.95 = 418,387.80/x - Step 3: Cross multiply
708,682.71x = 977,953.95 × 418,387.80 - Step 4: Simplify right side
708,682.71x = 409,164,001,641.81 - Step 5: Solve for x
x = 409,164,001,641.81/708,682.71 - Step 6: Final answer
x = 577,358.52
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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.