Finding the Fourth Proportional to 630,120.64, 869,655.36 and 375,476.80
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Solution
The fourth proportional to 630,120.64, 869,655.36 and 375,476.80 is: 518,210.94
Step by Step Solution
- Step 1: Write the proportion equation
630,120.64 : 869,655.36 = 375,476.80 : x - Step 2: Convert to fraction form
630,120.64/869,655.36 = 375,476.80/x - Step 3: Cross multiply
630,120.64x = 869,655.36 × 375,476.80 - Step 4: Simplify right side
630,120.64x = 326,535,411,675.65 - Step 5: Solve for x
x = 326,535,411,675.65/630,120.64 - Step 6: Final answer
x = 518,210.94
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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.