Finding the Fourth Proportional to 571,626.19, 788,875.64 and 316,971.91
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Solution
The fourth proportional to 571,626.19, 788,875.64 and 316,971.91 is: 437,438.70
Step by Step Solution
- Step 1: Write the proportion equation
571,626.19 : 788,875.64 = 316,971.91 : x - Step 2: Convert to fraction form
571,626.19/788,875.64 = 316,971.91/x - Step 3: Cross multiply
571,626.19x = 788,875.64 × 316,971.91 - Step 4: Simplify right side
571,626.19x = 250,051,418,363.27 - Step 5: Solve for x
x = 250,051,418,363.27/571,626.19 - Step 6: Final answer
x = 437,438.70
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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.