Finding the Fourth Proportional to 630,397.17, 869,943.91 and 358,465.08
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Solution
The fourth proportional to 630,397.17, 869,943.91 and 358,465.08 is: 494,679.43
Step by Step Solution
- Step 1: Write the proportion equation
630,397.17 : 869,943.91 = 358,465.08 : x - Step 2: Convert to fraction form
630,397.17/869,943.91 = 358,465.08/x - Step 3: Cross multiply
630,397.17x = 869,943.91 × 358,465.08 - Step 4: Simplify right side
630,397.17x = 311,844,513,293.66 - Step 5: Solve for x
x = 311,844,513,293.66/630,397.17 - Step 6: Final answer
x = 494,679.43
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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.