Finding the Fourth Proportional to 1,038,123.99, 1,432,366.61 and 630,215.55
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Solution
The fourth proportional to 1,038,123.99, 1,432,366.61 and 630,215.55 is: 869,549.03
Step by Step Solution
- Step 1: Write the proportion equation
1,038,123.99 : 1,432,366.61 = 630,215.55 : x - Step 2: Convert to fraction form
1,038,123.99/1,432,366.61 = 630,215.55/x - Step 3: Cross multiply
1,038,123.99x = 1,432,366.61 × 630,215.55 - Step 4: Simplify right side
1,038,123.99x = 902,699,707,771.71 - Step 5: Solve for x
x = 902,699,707,771.71/1,038,123.99 - Step 6: Final answer
x = 869,549.03
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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.