Finding the Fourth Proportional to 708,645.79, 977,918.02 and 386,358.67
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Solution
The fourth proportional to 708,645.79, 977,918.02 and 386,358.67 is: 533,167.78
Step by Step Solution
- Step 1: Write the proportion equation
708,645.79 : 977,918.02 = 386,358.67 : x - Step 2: Convert to fraction form
708,645.79/977,918.02 = 386,358.67/x - Step 3: Cross multiply
708,645.79x = 977,918.02 × 386,358.67 - Step 4: Simplify right side
708,645.79x = 377,827,105,576.23 - Step 5: Solve for x
x = 377,827,105,576.23/708,645.79 - Step 6: Final answer
x = 533,167.78
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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.