Finding the Fourth Proportional to 571,117.36, 788,130.20 and 316,463.12
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Solution
The fourth proportional to 571,117.36, 788,130.20 and 316,463.12 is: 436,712.59
Step by Step Solution
- Step 1: Write the proportion equation
571,117.36 : 788,130.20 = 316,463.12 : x - Step 2: Convert to fraction form
571,117.36/788,130.20 = 316,463.12/x - Step 3: Cross multiply
571,117.36x = 788,130.20 × 316,463.12 - Step 4: Simplify right side
571,117.36x = 249,414,142,058.22 - Step 5: Solve for x
x = 249,414,142,058.22/571,117.36 - Step 6: Final answer
x = 436,712.59
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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.